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Finding the Fourth Proportional to 418,635.02, 627,160.16 and 247,344.47

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Solution

The fourth proportional to 418,635.02, 627,160.16 and 247,344.47 is: 370,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,635.02 : 627,160.16 = 247,344.47 : x
  2. Step 2: Convert to fraction form
    418,635.02/627,160.16 = 247,344.47/x
  3. Step 3: Cross multiply
    418,635.02x = 627,160.16 × 247,344.47
  4. Step 4: Simplify right side
    418,635.02x = 155,124,594,862.88
  5. Step 5: Solve for x
    x = 155,124,594,862.88/418,635.02
  6. Step 6: Final answer
    x = 370,548.54

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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.