Home / 406,968.40-561,622.92-225,687.76

Finding the Fourth Proportional to 406,968.40, 561,622.92 and 225,687.76

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Solution

The fourth proportional to 406,968.40, 561,622.92 and 225,687.76 is: 311,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,968.40 : 561,622.92 = 225,687.76 : x
  2. Step 2: Convert to fraction form
    406,968.40/561,622.92 = 225,687.76/x
  3. Step 3: Cross multiply
    406,968.40x = 561,622.92 × 225,687.76
  4. Step 4: Simplify right side
    406,968.40x = 126,751,418,779.46
  5. Step 5: Solve for x
    x = 126,751,418,779.46/406,968.40
  6. Step 6: Final answer
    x = 311,452.73

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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.