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Finding the Fourth Proportional to 437,404.70, 656,107.05 and 279,811.10

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Solution

The fourth proportional to 437,404.70, 656,107.05 and 279,811.10 is: 419,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,404.70 : 656,107.05 = 279,811.10 : x
  2. Step 2: Convert to fraction form
    437,404.70/656,107.05 = 279,811.10/x
  3. Step 3: Cross multiply
    437,404.70x = 656,107.05 × 279,811.10
  4. Step 4: Simplify right side
    437,404.70x = 183,586,035,378.26
  5. Step 5: Solve for x
    x = 183,586,035,378.26/437,404.70
  6. Step 6: Final answer
    x = 419,716.65

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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.