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Finding the Fourth Proportional to 625,634.88, 938,687.22 and 288,836.88

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Solution

The fourth proportional to 625,634.88, 938,687.22 and 288,836.88 is: 433,363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,634.88 : 938,687.22 = 288,836.88 : x
  2. Step 2: Convert to fraction form
    625,634.88/938,687.22 = 288,836.88/x
  3. Step 3: Cross multiply
    625,634.88x = 938,687.22 × 288,836.88
  4. Step 4: Simplify right side
    625,634.88x = 271,127,487,920.67
  5. Step 5: Solve for x
    x = 271,127,487,920.67/625,634.88
  6. Step 6: Final answer
    x = 433,363.77

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1.5x scale

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.