Home / 488,460.52-674,306.38-327,420.78

Finding the Fourth Proportional to 488,460.52, 674,306.38 and 327,420.78

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Solution

The fourth proportional to 488,460.52, 674,306.38 and 327,420.78 is: 451,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,460.52 : 674,306.38 = 327,420.78 : x
  2. Step 2: Convert to fraction form
    488,460.52/674,306.38 = 327,420.78/x
  3. Step 3: Cross multiply
    488,460.52x = 674,306.38 × 327,420.78
  4. Step 4: Simplify right side
    488,460.52x = 220,781,920,898.58
  5. Step 5: Solve for x
    x = 220,781,920,898.58/488,460.52
  6. Step 6: Final answer
    x = 451,995.43

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1.5x scale

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.