If point a (M + 4,1-2m) is in the fourth quadrant, find the value range of M

If point a (M + 4,1-2m) is in the fourth quadrant, find the value range of M

Point a is in the fourth quadrant, so
m+4 > 0
1-2m < 0
So there is
m > -4
m > 1/2
So m > 1 / 2