Home / 678,610.38-1,017,914.92-173,171.36

Finding the Fourth Proportional to 678,610.38, 1,017,914.92 and 173,171.36

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Solution

The fourth proportional to 678,610.38, 1,017,914.92 and 173,171.36 is: 259,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,610.38 : 1,017,914.92 = 173,171.36 : x
  2. Step 2: Convert to fraction form
    678,610.38/1,017,914.92 = 173,171.36/x
  3. Step 3: Cross multiply
    678,610.38x = 1,017,914.92 × 173,171.36
  4. Step 4: Simplify right side
    678,610.38x = 176,273,711,060.69
  5. Step 5: Solve for x
    x = 176,273,711,060.69/678,610.38
  6. Step 6: Final answer
    x = 259,756.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.