Home / 804,737.20-1,207,105.80-431,489.20

Finding the Fourth Proportional to 804,737.20, 1,207,105.80 and 431,489.20

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Solution

The fourth proportional to 804,737.20, 1,207,105.80 and 431,489.20 is: 647,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,737.20 : 1,207,105.80 = 431,489.20 : x
  2. Step 2: Convert to fraction form
    804,737.20/1,207,105.80 = 431,489.20/x
  3. Step 3: Cross multiply
    804,737.20x = 1,207,105.80 × 431,489.20
  4. Step 4: Simplify right side
    804,737.20x = 520,853,115,957.36
  5. Step 5: Solve for x
    x = 520,853,115,957.36/804,737.20
  6. Step 6: Final answer
    x = 647,233.80

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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.