Home / 406,923.92-561,552.24-225,635.76

Finding the Fourth Proportional to 406,923.92, 561,552.24 and 225,635.76

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Solution

The fourth proportional to 406,923.92, 561,552.24 and 225,635.76 is: 311,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,923.92 : 561,552.24 = 225,635.76 : x
  2. Step 2: Convert to fraction form
    406,923.92/561,552.24 = 225,635.76/x
  3. Step 3: Cross multiply
    406,923.92x = 561,552.24 × 225,635.76
  4. Step 4: Simplify right side
    406,923.92x = 126,706,266,452.10
  5. Step 5: Solve for x
    x = 126,706,266,452.10/406,923.92
  6. Step 6: Final answer
    x = 311,375.81

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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.