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Finding the Fourth Proportional to 462,523.52, 638,479.20 and 281,293.66

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Solution

The fourth proportional to 462,523.52, 638,479.20 and 281,293.66 is: 388,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,523.52 : 638,479.20 = 281,293.66 : x
  2. Step 2: Convert to fraction form
    462,523.52/638,479.20 = 281,293.66/x
  3. Step 3: Cross multiply
    462,523.52x = 638,479.20 × 281,293.66
  4. Step 4: Simplify right side
    462,523.52x = 179,600,149,405.67
  5. Step 5: Solve for x
    x = 179,600,149,405.67/462,523.52
  6. Step 6: Final answer
    x = 388,304.90

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1.5x scale

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.