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Finding the Fourth Proportional to 378,917.60, 568,785.85 and 337,065.71

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Solution

The fourth proportional to 378,917.60, 568,785.85 and 337,065.71 is: 505,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,917.60 : 568,785.85 = 337,065.71 : x
  2. Step 2: Convert to fraction form
    378,917.60/568,785.85 = 337,065.71/x
  3. Step 3: Cross multiply
    378,917.60x = 568,785.85 × 337,065.71
  4. Step 4: Simplify right side
    378,917.60x = 191,718,202,681.61
  5. Step 5: Solve for x
    x = 191,718,202,681.61/378,917.60
  6. Step 6: Final answer
    x = 505,962.79

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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.