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Finding the Fourth Proportional to 997,757.70, 1,491,168.89 and 728,452.95

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Solution

The fourth proportional to 997,757.70, 1,491,168.89 and 728,452.95 is: 1,088,687.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,757.70 : 1,491,168.89 = 728,452.95 : x
  2. Step 2: Convert to fraction form
    997,757.70/1,491,168.89 = 728,452.95/x
  3. Step 3: Cross multiply
    997,757.70x = 1,491,168.89 × 728,452.95
  4. Step 4: Simplify right side
    997,757.70x = 1,086,246,373,097.97
  5. Step 5: Solve for x
    x = 1,086,246,373,097.97/997,757.70
  6. Step 6: Final answer
    x = 1,088,687.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.