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Finding the Fourth Proportional to 627,854.64, 940,855.60 and 371,422

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Solution

The fourth proportional to 627,854.64, 940,855.60 and 371,422 is: 556,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,854.64 : 940,855.60 = 371,422 : x
  2. Step 2: Convert to fraction form
    627,854.64/940,855.60 = 371,422/x
  3. Step 3: Cross multiply
    627,854.64x = 940,855.60 × 371,422
  4. Step 4: Simplify right side
    627,854.64x = 349,454,468,663.20
  5. Step 5: Solve for x
    x = 349,454,468,663.20/627,854.64
  6. Step 6: Final answer
    x = 556,584.99

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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.