Home / 491,560.38-736,589.45-331,042.78

Finding the Fourth Proportional to 491,560.38, 736,589.45 and 331,042.78

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Solution

The fourth proportional to 491,560.38, 736,589.45 and 331,042.78 is: 496,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,560.38 : 736,589.45 = 331,042.78 : x
  2. Step 2: Convert to fraction form
    491,560.38/736,589.45 = 331,042.78/x
  3. Step 3: Cross multiply
    491,560.38x = 736,589.45 × 331,042.78
  4. Step 4: Simplify right side
    491,560.38x = 243,842,619,132.90
  5. Step 5: Solve for x
    x = 243,842,619,132.90/491,560.38
  6. Step 6: Final answer
    x = 496,058.33

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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.