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Finding the Fourth Proportional to 625,648.37, 938,752.92 and 288,508.30

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Solution

The fourth proportional to 625,648.37, 938,752.92 and 288,508.30 is: 432,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,648.37 : 938,752.92 = 288,508.30 : x
  2. Step 2: Convert to fraction form
    625,648.37/938,752.92 = 288,508.30/x
  3. Step 3: Cross multiply
    625,648.37x = 938,752.92 × 288,508.30
  4. Step 4: Simplify right side
    625,648.37x = 270,838,006,722.35
  5. Step 5: Solve for x
    x = 270,838,006,722.35/625,648.37
  6. Step 6: Final answer
    x = 432,891.74

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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.