Home / 461,387.10-690,830.01-239,304.54

Finding the Fourth Proportional to 461,387.10, 690,830.01 and 239,304.54

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Solution

The fourth proportional to 461,387.10, 690,830.01 and 239,304.54 is: 358,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,387.10 : 690,830.01 = 239,304.54 : x
  2. Step 2: Convert to fraction form
    461,387.10/690,830.01 = 239,304.54/x
  3. Step 3: Cross multiply
    461,387.10x = 690,830.01 × 239,304.54
  4. Step 4: Simplify right side
    461,387.10x = 165,318,757,761.25
  5. Step 5: Solve for x
    x = 165,318,757,761.25/461,387.10
  6. Step 6: Final answer
    x = 358,308.15

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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.