Home / 781,833.75-1,172,750.63-220,882.83

Finding the Fourth Proportional to 781,833.75, 1,172,750.63 and 220,882.83

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Solution

The fourth proportional to 781,833.75, 1,172,750.63 and 220,882.83 is: 331,324.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,833.75 : 1,172,750.63 = 220,882.83 : x
  2. Step 2: Convert to fraction form
    781,833.75/1,172,750.63 = 220,882.83/x
  3. Step 3: Cross multiply
    781,833.75x = 1,172,750.63 × 220,882.83
  4. Step 4: Simplify right side
    781,833.75x = 259,040,476,934.27
  5. Step 5: Solve for x
    x = 259,040,476,934.27/781,833.75
  6. Step 6: Final answer
    x = 331,324.25

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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.