Home / 414,614.62-621,919.92-161,920.78

Finding the Fourth Proportional to 414,614.62, 621,919.92 and 161,920.78

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Solution

The fourth proportional to 414,614.62, 621,919.92 and 161,920.78 is: 242,880.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,614.62 : 621,919.92 = 161,920.78 : x
  2. Step 2: Convert to fraction form
    414,614.62/621,919.92 = 161,920.78/x
  3. Step 3: Cross multiply
    414,614.62x = 621,919.92 × 161,920.78
  4. Step 4: Simplify right side
    414,614.62x = 100,701,758,543.94
  5. Step 5: Solve for x
    x = 100,701,758,543.94/414,614.62
  6. Step 6: Final answer
    x = 242,880.39

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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.