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Finding the Fourth Proportional to 574,346.88, 861,520.52 and 258,434.73

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Solution

The fourth proportional to 574,346.88, 861,520.52 and 258,434.73 is: 387,652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,346.88 : 861,520.52 = 258,434.73 : x
  2. Step 2: Convert to fraction form
    574,346.88/861,520.52 = 258,434.73/x
  3. Step 3: Cross multiply
    574,346.88x = 861,520.52 × 258,434.73
  4. Step 4: Simplify right side
    574,346.88x = 222,646,823,621.75
  5. Step 5: Solve for x
    x = 222,646,823,621.75/574,346.88
  6. Step 6: Final answer
    x = 387,652.19

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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.