Home / 437,529.30-656,553.15-318,902.10

Finding the Fourth Proportional to 437,529.30, 656,553.15 and 318,902.10

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Solution

The fourth proportional to 437,529.30, 656,553.15 and 318,902.10 is: 478,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,529.30 : 656,553.15 = 318,902.10 : x
  2. Step 2: Convert to fraction form
    437,529.30/656,553.15 = 318,902.10/x
  3. Step 3: Cross multiply
    437,529.30x = 656,553.15 × 318,902.10
  4. Step 4: Simplify right side
    437,529.30x = 209,376,178,296.62
  5. Step 5: Solve for x
    x = 209,376,178,296.62/437,529.30
  6. Step 6: Final answer
    x = 478,542.07

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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.