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Finding the Fourth Proportional to 605,110.80, 907,666.20 and 437,149.20

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Solution

The fourth proportional to 605,110.80, 907,666.20 and 437,149.20 is: 655,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,110.80 : 907,666.20 = 437,149.20 : x
  2. Step 2: Convert to fraction form
    605,110.80/907,666.20 = 437,149.20/x
  3. Step 3: Cross multiply
    605,110.80x = 907,666.20 × 437,149.20
  4. Step 4: Simplify right side
    605,110.80x = 396,785,553,197.04
  5. Step 5: Solve for x
    x = 396,785,553,197.04/605,110.80
  6. Step 6: Final answer
    x = 655,723.80

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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.