Home / 488,819.38-674,569.14-284,990.98

Finding the Fourth Proportional to 488,819.38, 674,569.14 and 284,990.98

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Solution

The fourth proportional to 488,819.38, 674,569.14 and 284,990.98 is: 393,286.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,819.38 : 674,569.14 = 284,990.98 : x
  2. Step 2: Convert to fraction form
    488,819.38/674,569.14 = 284,990.98/x
  3. Step 3: Cross multiply
    488,819.38x = 674,569.14 × 284,990.98
  4. Step 4: Simplify right side
    488,819.38x = 192,246,120,286.36
  5. Step 5: Solve for x
    x = 192,246,120,286.36/488,819.38
  6. Step 6: Final answer
    x = 393,286.62

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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.