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Finding the Fourth Proportional to 454,743, 627,589.68 and 339,822.09

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Solution

The fourth proportional to 454,743, 627,589.68 and 339,822.09 is: 468,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,743 : 627,589.68 = 339,822.09 : x
  2. Step 2: Convert to fraction form
    454,743/627,589.68 = 339,822.09/x
  3. Step 3: Cross multiply
    454,743x = 627,589.68 × 339,822.09
  4. Step 4: Simplify right side
    454,743x = 213,268,836,720.03
  5. Step 5: Solve for x
    x = 213,268,836,720.03/454,743
  6. Step 6: Final answer
    x = 468,987.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.