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Finding the Fourth Proportional to 454,099.28, 680,099.16 and 438,352.88

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Solution

The fourth proportional to 454,099.28, 680,099.16 and 438,352.88 is: 656,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,099.28 : 680,099.16 = 438,352.88 : x
  2. Step 2: Convert to fraction form
    454,099.28/680,099.16 = 438,352.88/x
  3. Step 3: Cross multiply
    454,099.28x = 680,099.16 × 438,352.88
  4. Step 4: Simplify right side
    454,099.28x = 298,123,425,471.58
  5. Step 5: Solve for x
    x = 298,123,425,471.58/454,099.28
  6. Step 6: Final answer
    x = 656,515.96

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1.5x scale

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.