Finding the Fourth Proportional to 4,654,368.90, 6,981,553.35 and 1,288,575.90
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Solution
The fourth proportional to 4,654,368.90, 6,981,553.35 and 1,288,575.90 is: 1,932,863.85
Step by Step Solution
- Step 1: Write the proportion equation
4,654,368.90 : 6,981,553.35 = 1,288,575.90 : x - Step 2: Convert to fraction form
4,654,368.90/6,981,553.35 = 1,288,575.90/x - Step 3: Cross multiply
4,654,368.90x = 6,981,553.35 × 1,288,575.90 - Step 4: Simplify right side
4,654,368.90x = 8,996,261,391,374.26 - Step 5: Solve for x
x = 8,996,261,391,374.26/4,654,368.90 - Step 6: Final answer
x = 1,932,863.85
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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.