Finding the Fourth Proportional to 391,306.20, 586,882.35 and 124,994.94
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Solution
The fourth proportional to 391,306.20, 586,882.35 and 124,994.94 is: 187,467.83
Step by Step Solution
- Step 1: Write the proportion equation
391,306.20 : 586,882.35 = 124,994.94 : x - Step 2: Convert to fraction form
391,306.20/586,882.35 = 124,994.94/x - Step 3: Cross multiply
391,306.20x = 586,882.35 × 124,994.94 - Step 4: Simplify right side
391,306.20x = 73,357,324,125.31 - Step 5: Solve for x
x = 73,357,324,125.31/391,306.20 - Step 6: Final answer
x = 187,467.83
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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.