Home / 754,568.31-1,131,729.44-221,964.78

Finding the Fourth Proportional to 754,568.31, 1,131,729.44 and 221,964.78

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Solution

The fourth proportional to 754,568.31, 1,131,729.44 and 221,964.78 is: 332,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,568.31 : 1,131,729.44 = 221,964.78 : x
  2. Step 2: Convert to fraction form
    754,568.31/1,131,729.44 = 221,964.78/x
  3. Step 3: Cross multiply
    754,568.31x = 1,131,729.44 × 221,964.78
  4. Step 4: Simplify right side
    754,568.31x = 251,204,077,993.12
  5. Step 5: Solve for x
    x = 251,204,077,993.12/754,568.31
  6. Step 6: Final answer
    x = 332,910.98

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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.