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Finding the Fourth Proportional to 462,962.17, 638,987.71 and 281,732.49

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Solution

The fourth proportional to 462,962.17, 638,987.71 and 281,732.49 is: 388,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,962.17 : 638,987.71 = 281,732.49 : x
  2. Step 2: Convert to fraction form
    462,962.17/638,987.71 = 281,732.49/x
  3. Step 3: Cross multiply
    462,962.17x = 638,987.71 × 281,732.49
  4. Step 4: Simplify right side
    462,962.17x = 180,023,594,718.43
  5. Step 5: Solve for x
    x = 180,023,594,718.43/462,962.17
  6. Step 6: Final answer
    x = 388,851.63

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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.