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Finding the Fourth Proportional to 437,400.70, 656,101.05 and 279,807.10

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Solution

The fourth proportional to 437,400.70, 656,101.05 and 279,807.10 is: 419,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,400.70 : 656,101.05 = 279,807.10 : x
  2. Step 2: Convert to fraction form
    437,400.70/656,101.05 = 279,807.10/x
  3. Step 3: Cross multiply
    437,400.70x = 656,101.05 × 279,807.10
  4. Step 4: Simplify right side
    437,400.70x = 183,581,732,107.46
  5. Step 5: Solve for x
    x = 183,581,732,107.46/437,400.70
  6. Step 6: Final answer
    x = 419,710.65

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Similar ratio
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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.