Home / 498,781.44-688,301.28-283,930.56

Finding the Fourth Proportional to 498,781.44, 688,301.28 and 283,930.56

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Solution

The fourth proportional to 498,781.44, 688,301.28 and 283,930.56 is: 391,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,781.44 : 688,301.28 = 283,930.56 : x
  2. Step 2: Convert to fraction form
    498,781.44/688,301.28 = 283,930.56/x
  3. Step 3: Cross multiply
    498,781.44x = 688,301.28 × 283,930.56
  4. Step 4: Simplify right side
    498,781.44x = 195,429,767,879.12
  5. Step 5: Solve for x
    x = 195,429,767,879.12/498,781.44
  6. Step 6: Final answer
    x = 391,814.43

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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.