Home / 493,839.80-681,549.09-356,131.97

Finding the Fourth Proportional to 493,839.80, 681,549.09 and 356,131.97

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Solution

The fourth proportional to 493,839.80, 681,549.09 and 356,131.97 is: 491,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,839.80 : 681,549.09 = 356,131.97 : x
  2. Step 2: Convert to fraction form
    493,839.80/681,549.09 = 356,131.97/x
  3. Step 3: Cross multiply
    493,839.80x = 681,549.09 × 356,131.97
  4. Step 4: Simplify right side
    493,839.80x = 242,721,420,073.41
  5. Step 5: Solve for x
    x = 242,721,420,073.41/493,839.80
  6. Step 6: Final answer
    x = 491,498.30

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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.