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Finding the Fourth Proportional to 625,366.20, 938,486.70 and 270,634.80

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Solution

The fourth proportional to 625,366.20, 938,486.70 and 270,634.80 is: 406,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,366.20 : 938,486.70 = 270,634.80 : x
  2. Step 2: Convert to fraction form
    625,366.20/938,486.70 = 270,634.80/x
  3. Step 3: Cross multiply
    625,366.20x = 938,486.70 × 270,634.80
  4. Step 4: Simplify right side
    625,366.20x = 253,987,160,357.16
  5. Step 5: Solve for x
    x = 253,987,160,357.16/625,366.20
  6. Step 6: Final answer
    x = 406,141.49

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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.