Home / 406,966.40-561,620.16-225,685.76

Finding the Fourth Proportional to 406,966.40, 561,620.16 and 225,685.76

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Solution

The fourth proportional to 406,966.40, 561,620.16 and 225,685.76 is: 311,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,966.40 : 561,620.16 = 225,685.76 : x
  2. Step 2: Convert to fraction form
    406,966.40/561,620.16 = 225,685.76/x
  3. Step 3: Cross multiply
    406,966.40x = 561,620.16 × 225,685.76
  4. Step 4: Simplify right side
    406,966.40x = 126,749,672,640.92
  5. Step 5: Solve for x
    x = 126,749,672,640.92/406,966.40
  6. Step 6: Final answer
    x = 311,449.97

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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.