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Finding the Fourth Proportional to 454,687.98, 627,209.01 and 284,626.86

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Solution

The fourth proportional to 454,687.98, 627,209.01 and 284,626.86 is: 392,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,687.98 : 627,209.01 = 284,626.86 : x
  2. Step 2: Convert to fraction form
    454,687.98/627,209.01 = 284,626.86/x
  3. Step 3: Cross multiply
    454,687.98x = 627,209.01 × 284,626.86
  4. Step 4: Simplify right side
    454,687.98x = 178,520,531,080.01
  5. Step 5: Solve for x
    x = 178,520,531,080.01/454,687.98
  6. Step 6: Final answer
    x = 392,622.06

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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.