Home / 407,005.05-561,626.96-225,713.82

Finding the Fourth Proportional to 407,005.05, 561,626.96 and 225,713.82

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Solution

The fourth proportional to 407,005.05, 561,626.96 and 225,713.82 is: 311,462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,005.05 : 561,626.96 = 225,713.82 : x
  2. Step 2: Convert to fraction form
    407,005.05/561,626.96 = 225,713.82/x
  3. Step 3: Cross multiply
    407,005.05x = 561,626.96 × 225,713.82
  4. Step 4: Simplify right side
    407,005.05x = 126,766,965,428.02
  5. Step 5: Solve for x
    x = 126,766,965,428.02/407,005.05
  6. Step 6: Final answer
    x = 311,462.88

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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.