Home / 406,719.77-561,306.88-225,488.54

Finding the Fourth Proportional to 406,719.77, 561,306.88 and 225,488.54

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Solution

The fourth proportional to 406,719.77, 561,306.88 and 225,488.54 is: 311,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,719.77 : 561,306.88 = 225,488.54 : x
  2. Step 2: Convert to fraction form
    406,719.77/561,306.88 = 225,488.54/x
  3. Step 3: Cross multiply
    406,719.77x = 561,306.88 × 225,488.54
  4. Step 4: Simplify right side
    406,719.77x = 126,568,270,548.28
  5. Step 5: Solve for x
    x = 126,568,270,548.28/406,719.77
  6. Step 6: Final answer
    x = 311,192.82

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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.