Home / 479,404.56-718,920.04-179,721.68

Finding the Fourth Proportional to 479,404.56, 718,920.04 and 179,721.68

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Solution

The fourth proportional to 479,404.56, 718,920.04 and 179,721.68 is: 269,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,404.56 : 718,920.04 = 179,721.68 : x
  2. Step 2: Convert to fraction form
    479,404.56/718,920.04 = 179,721.68/x
  3. Step 3: Cross multiply
    479,404.56x = 718,920.04 × 179,721.68
  4. Step 4: Simplify right side
    479,404.56x = 129,205,517,374.47
  5. Step 5: Solve for x
    x = 129,205,517,374.47/479,404.56
  6. Step 6: Final answer
    x = 269,512.49

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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.