Home / 627,125.12-865,100.92-397,276.88

Finding the Fourth Proportional to 627,125.12, 865,100.92 and 397,276.88

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Solution

The fourth proportional to 627,125.12, 865,100.92 and 397,276.88 is: 548,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,125.12 : 865,100.92 = 397,276.88 : x
  2. Step 2: Convert to fraction form
    627,125.12/865,100.92 = 397,276.88/x
  3. Step 3: Cross multiply
    627,125.12x = 865,100.92 × 397,276.88
  4. Step 4: Simplify right side
    627,125.12x = 343,684,594,382.73
  5. Step 5: Solve for x
    x = 343,684,594,382.73/627,125.12
  6. Step 6: Final answer
    x = 548,031.94

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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.