Home / 406,997.28-561,656.25-225,736.92

Finding the Fourth Proportional to 406,997.28, 561,656.25 and 225,736.92

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Solution

The fourth proportional to 406,997.28, 561,656.25 and 225,736.92 is: 311,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,997.28 : 561,656.25 = 225,736.92 : x
  2. Step 2: Convert to fraction form
    406,997.28/561,656.25 = 225,736.92/x
  3. Step 3: Cross multiply
    406,997.28x = 561,656.25 × 225,736.92
  4. Step 4: Simplify right side
    406,997.28x = 126,786,551,973.75
  5. Step 5: Solve for x
    x = 126,786,551,973.75/406,997.28
  6. Step 6: Final answer
    x = 311,516.95

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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.