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Finding the Fourth Proportional to 609,542.20, 912,239.70 and 534,892.60

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Solution

The fourth proportional to 609,542.20, 912,239.70 and 534,892.60 is: 800,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,542.20 : 912,239.70 = 534,892.60 : x
  2. Step 2: Convert to fraction form
    609,542.20/912,239.70 = 534,892.60/x
  3. Step 3: Cross multiply
    609,542.20x = 912,239.70 × 534,892.60
  4. Step 4: Simplify right side
    609,542.20x = 487,950,264,956.22
  5. Step 5: Solve for x
    x = 487,950,264,956.22/609,542.20
  6. Step 6: Final answer
    x = 800,519.25

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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.