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Finding the Fourth Proportional to 694,471.28, 958,046.72 and 449,535.12

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Solution

The fourth proportional to 694,471.28, 958,046.72 and 449,535.12 is: 620,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,471.28 : 958,046.72 = 449,535.12 : x
  2. Step 2: Convert to fraction form
    694,471.28/958,046.72 = 449,535.12/x
  3. Step 3: Cross multiply
    694,471.28x = 958,046.72 × 449,535.12
  4. Step 4: Simplify right side
    694,471.28x = 430,675,647,240.81
  5. Step 5: Solve for x
    x = 430,675,647,240.81/694,471.28
  6. Step 6: Final answer
    x = 620,148.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.