Home / 407,028.82-561,718.52-225,729.94

Finding the Fourth Proportional to 407,028.82, 561,718.52 and 225,729.94

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Solution

The fourth proportional to 407,028.82, 561,718.52 and 225,729.94 is: 311,517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,028.82 : 561,718.52 = 225,729.94 : x
  2. Step 2: Convert to fraction form
    407,028.82/561,718.52 = 225,729.94/x
  3. Step 3: Cross multiply
    407,028.82x = 561,718.52 × 225,729.94
  4. Step 4: Simplify right side
    407,028.82x = 126,796,689,289.70
  5. Step 5: Solve for x
    x = 126,796,689,289.70/407,028.82
  6. Step 6: Final answer
    x = 311,517.72

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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.