Home / 423,234.20-634,839.00-123,721.82

Finding the Fourth Proportional to 423,234.20, 634,839.00 and 123,721.82

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Solution

The fourth proportional to 423,234.20, 634,839.00 and 123,721.82 is: 185,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,234.20 : 634,839.00 = 123,721.82 : x
  2. Step 2: Convert to fraction form
    423,234.20/634,839.00 = 123,721.82/x
  3. Step 3: Cross multiply
    423,234.20x = 634,839.00 × 123,721.82
  4. Step 4: Simplify right side
    423,234.20x = 78,543,435,229.47
  5. Step 5: Solve for x
    x = 78,543,435,229.47/423,234.20
  6. Step 6: Final answer
    x = 185,579.13

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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.