Home / 406,719.29-561,306.24-225,488.09

Finding the Fourth Proportional to 406,719.29, 561,306.24 and 225,488.09

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Solution

The fourth proportional to 406,719.29, 561,306.24 and 225,488.09 is: 311,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,719.29 : 561,306.24 = 225,488.09 : x
  2. Step 2: Convert to fraction form
    406,719.29/561,306.24 = 225,488.09/x
  3. Step 3: Cross multiply
    406,719.29x = 561,306.24 × 225,488.09
  4. Step 4: Simplify right side
    406,719.29x = 126,567,869,156.15
  5. Step 5: Solve for x
    x = 126,567,869,156.15/406,719.29
  6. Step 6: Final answer
    x = 311,192.20

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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.