Finding the Fourth Proportional to 708,695.98, 1,063,542.12 and 640,937.26
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Solution
The fourth proportional to 708,695.98, 1,063,542.12 and 640,937.26 is: 961,856.41
Step by Step Solution
- Step 1: Write the proportion equation
708,695.98 : 1,063,542.12 = 640,937.26 : x - Step 2: Convert to fraction form
708,695.98/1,063,542.12 = 640,937.26/x - Step 3: Cross multiply
708,695.98x = 1,063,542.12 × 640,937.26 - Step 4: Simplify right side
708,695.98x = 681,663,770,638.79 - Step 5: Solve for x
x = 681,663,770,638.79/708,695.98 - Step 6: Final answer
x = 961,856.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.