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Finding the Fourth Proportional to 442,034.41, 663,515.34 and 391,755.08

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Solution

The fourth proportional to 442,034.41, 663,515.34 and 391,755.08 is: 588,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,034.41 : 663,515.34 = 391,755.08 : x
  2. Step 2: Convert to fraction form
    442,034.41/663,515.34 = 391,755.08/x
  3. Step 3: Cross multiply
    442,034.41x = 663,515.34 × 391,755.08
  4. Step 4: Simplify right side
    442,034.41x = 259,935,500,316.27
  5. Step 5: Solve for x
    x = 259,935,500,316.27/442,034.41
  6. Step 6: Final answer
    x = 588,043.59

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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.