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Finding the Fourth Proportional to 454,617.12, 627,640.44 and 404,176.56

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Solution

The fourth proportional to 454,617.12, 627,640.44 and 404,176.56 is: 558,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,617.12 : 627,640.44 = 404,176.56 : x
  2. Step 2: Convert to fraction form
    454,617.12/627,640.44 = 404,176.56/x
  3. Step 3: Cross multiply
    454,617.12x = 627,640.44 × 404,176.56
  4. Step 4: Simplify right side
    454,617.12x = 253,677,553,956.09
  5. Step 5: Solve for x
    x = 253,677,553,956.09/454,617.12
  6. Step 6: Final answer
    x = 558,002.64

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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.