Finding the Fourth Proportional to 752,691.12, 1,038,712.08 and 413,152.08
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Solution
The fourth proportional to 752,691.12, 1,038,712.08 and 413,152.08 is: 570,148.96
Step by Step Solution
- Step 1: Write the proportion equation
752,691.12 : 1,038,712.08 = 413,152.08 : x - Step 2: Convert to fraction form
752,691.12/1,038,712.08 = 413,152.08/x - Step 3: Cross multiply
752,691.12x = 1,038,712.08 × 413,152.08 - Step 4: Simplify right side
752,691.12x = 429,146,056,373.13 - Step 5: Solve for x
x = 429,146,056,373.13/752,691.12 - Step 6: Final answer
x = 570,148.96
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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.