The original image has a resolution of 2121 x 1414
The aspect ratio is 3 / 2 or 1.5
The image at half the size is 2121 x 707
The image at quarter the size is 530.25 x 353.5
The original image has a resolution of 812 x 457
The aspect ratio is 16 / 9 or 1.78
The image at half the size is 406 x 228.5
The image at quarter the size is 203 x 114.25
The original image has a resolution of 720 x 480
The aspect ratio is 3 / 2 or 1.5
The image at half the size is 360 x 240
The image at quarter the size is 180 x 120