Finding the Fourth Proportional to 708,708.68, 1,063,561.27 and 640,949.96
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Solution
The fourth proportional to 708,708.68, 1,063,561.27 and 640,949.96 is: 961,875.55
Step by Step Solution
- Step 1: Write the proportion equation
708,708.68 : 1,063,561.27 = 640,949.96 : x - Step 2: Convert to fraction form
708,708.68/1,063,561.27 = 640,949.96/x - Step 3: Cross multiply
708,708.68x = 1,063,561.27 × 640,949.96 - Step 4: Simplify right side
708,708.68x = 681,689,553,464.05 - Step 5: Solve for x
x = 681,689,553,464.05/708,708.68 - Step 6: Final answer
x = 961,875.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.