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Finding the Fourth Proportional to 417,545.46, 625,759.83 and 217,445.76

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Solution

The fourth proportional to 417,545.46, 625,759.83 and 217,445.76 is: 325,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,545.46 : 625,759.83 = 217,445.76 : x
  2. Step 2: Convert to fraction form
    417,545.46/625,759.83 = 217,445.76/x
  3. Step 3: Cross multiply
    417,545.46x = 625,759.83 × 217,445.76
  4. Step 4: Simplify right side
    417,545.46x = 136,068,821,811.82
  5. Step 5: Solve for x
    x = 136,068,821,811.82/417,545.46
  6. Step 6: Final answer
    x = 325,877.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.