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Finding the Fourth Proportional to 574,227.31, 861,522 and 270,609.21

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Solution

The fourth proportional to 574,227.31, 861,522 and 270,609.21 is: 405,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,227.31 : 861,522 = 270,609.21 : x
  2. Step 2: Convert to fraction form
    574,227.31/861,522 = 270,609.21/x
  3. Step 3: Cross multiply
    574,227.31x = 861,522 × 270,609.21
  4. Step 4: Simplify right side
    574,227.31x = 233,135,787,817.62
  5. Step 5: Solve for x
    x = 233,135,787,817.62/574,227.31
  6. Step 6: Final answer
    x = 405,999.13

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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.