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Finding the Fourth Proportional to 498,613.20, 747,701.10 and 198,994.20

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Solution

The fourth proportional to 498,613.20, 747,701.10 and 198,994.20 is: 298,404.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,613.20 : 747,701.10 = 198,994.20 : x
  2. Step 2: Convert to fraction form
    498,613.20/747,701.10 = 198,994.20/x
  3. Step 3: Cross multiply
    498,613.20x = 747,701.10 × 198,994.20
  4. Step 4: Simplify right side
    498,613.20x = 148,788,182,233.62
  5. Step 5: Solve for x
    x = 148,788,182,233.62/498,613.20
  6. Step 6: Final answer
    x = 298,404.02

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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.