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Finding the Fourth Proportional to 479,404.67, 718,920.10 and 179,721.89

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Solution

The fourth proportional to 479,404.67, 718,920.10 and 179,721.89 is: 269,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,404.67 : 718,920.10 = 179,721.89 : x
  2. Step 2: Convert to fraction form
    479,404.67/718,920.10 = 179,721.89/x
  3. Step 3: Cross multiply
    479,404.67x = 718,920.10 × 179,721.89
  4. Step 4: Simplify right side
    479,404.67x = 129,205,674,637.78
  5. Step 5: Solve for x
    x = 129,205,674,637.78/479,404.67
  6. Step 6: Final answer
    x = 269,512.76

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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.