Calc new latitude/longitude from polar offset of known point

[BeMildred]

PROBLEM: Find a new point's latitude/longitude given the starting point's latitude/longitude and the polar offset (bearing:degrees-minutes-seconds and distance: xx.xx feet) from that known point.

My property description is given in bearing/distance from a known point. I can find the known point's latitude/longitude.

I need to calculate a new point's latitude/longitude given the distance (xx.xx ft) and bearing (degrees-minutes-seconds) from the known point.

This will enable me to find/approximate my property's borders using my portable gps unit.

A formula will do. An online calculator would be great.

 

[mgb_phys]

Resolve the polar bearing into lat and long components, then add these to the starting lat/long.
If the bearing length is small compared to the earth, you might not need to take spherical triginto account.

 

[BeMildred]

Resolve the polar bearing into lat and long components, then add these to the starting lat/long.
If the bearing length is small compared to the earth, you might not need to take spherical triginto account.

Would you know the formulas for resolving the polar bearing into lat and long components? We're talking about a small 4 acre parcel of land.

 

[mgb_phys]

I found an online calculator here http://williams.best.vwh.net/gccalc.htm
scroll down to Compute lat/lon given radial and distance from a known point, you might have to convert the bearing and lat long into decimals.