Finding the Fourth Proportional to 1,640,726.40, 2,263,292.64 and 961,531.68
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Solution
The fourth proportional to 1,640,726.40, 2,263,292.64 and 961,531.68 is: 1,326,380.54
Step by Step Solution
- Step 1: Write the proportion equation
1,640,726.40 : 2,263,292.64 = 961,531.68 : x - Step 2: Convert to fraction form
1,640,726.40/2,263,292.64 = 961,531.68/x - Step 3: Cross multiply
1,640,726.40x = 2,263,292.64 × 961,531.68 - Step 4: Simplify right side
1,640,726.40x = 2,176,227,574,470.84 - Step 5: Solve for x
x = 2,176,227,574,470.84/1,640,726.40 - Step 6: Final answer
x = 1,326,380.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.