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Finding the Fourth Proportional to 1,250,375.52, 1,873,308.24 and 769,766.88

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Solution

The fourth proportional to 1,250,375.52, 1,873,308.24 and 769,766.88 is: 1,153,262.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,375.52 : 1,873,308.24 = 769,766.88 : x
  2. Step 2: Convert to fraction form
    1,250,375.52/1,873,308.24 = 769,766.88/x
  3. Step 3: Cross multiply
    1,250,375.52x = 1,873,308.24 × 769,766.88
  4. Step 4: Simplify right side
    1,250,375.52x = 1,442,010,639,183.09
  5. Step 5: Solve for x
    x = 1,442,010,639,183.09/1,250,375.52
  6. Step 6: Final answer
    x = 1,153,262.05

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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.