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Finding the Fourth Proportional to 625,320.78, 937,514.61 and 292,819.02

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Solution

The fourth proportional to 625,320.78, 937,514.61 and 292,819.02 is: 439,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,320.78 : 937,514.61 = 292,819.02 : x
  2. Step 2: Convert to fraction form
    625,320.78/937,514.61 = 292,819.02/x
  3. Step 3: Cross multiply
    625,320.78x = 937,514.61 × 292,819.02
  4. Step 4: Simplify right side
    625,320.78x = 274,522,109,335.88
  5. Step 5: Solve for x
    x = 274,522,109,335.88/625,320.78
  6. Step 6: Final answer
    x = 439,010.05

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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.