Home / 667,115.28-1,000,831.14-217,836.36

Finding the Fourth Proportional to 667,115.28, 1,000,831.14 and 217,836.36

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Solution

The fourth proportional to 667,115.28, 1,000,831.14 and 217,836.36 is: 326,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,115.28 : 1,000,831.14 = 217,836.36 : x
  2. Step 2: Convert to fraction form
    667,115.28/1,000,831.14 = 217,836.36/x
  3. Step 3: Cross multiply
    667,115.28x = 1,000,831.14 × 217,836.36
  4. Step 4: Simplify right side
    667,115.28x = 218,017,412,512.25
  5. Step 5: Solve for x
    x = 218,017,412,512.25/667,115.28
  6. Step 6: Final answer
    x = 326,806.20

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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.