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Finding the Fourth Proportional to 627,171.20, 940,843.20 and 272,175.20

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Solution

The fourth proportional to 627,171.20, 940,843.20 and 272,175.20 is: 408,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,171.20 : 940,843.20 = 272,175.20 : x
  2. Step 2: Convert to fraction form
    627,171.20/940,843.20 = 272,175.20/x
  3. Step 3: Cross multiply
    627,171.20x = 940,843.20 × 272,175.20
  4. Step 4: Simplify right side
    627,171.20x = 256,074,186,128.64
  5. Step 5: Solve for x
    x = 256,074,186,128.64/627,171.20
  6. Step 6: Final answer
    x = 408,300.30

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1.5x scale

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.