Home / 754,239.28-1,131,358.50-221,764.72

Finding the Fourth Proportional to 754,239.28, 1,131,358.50 and 221,764.72

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Solution

The fourth proportional to 754,239.28, 1,131,358.50 and 221,764.72 is: 332,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,239.28 : 1,131,358.50 = 221,764.72 : x
  2. Step 2: Convert to fraction form
    754,239.28/1,131,358.50 = 221,764.72/x
  3. Step 3: Cross multiply
    754,239.28x = 1,131,358.50 × 221,764.72
  4. Step 4: Simplify right side
    754,239.28x = 250,895,400,972.12
  5. Step 5: Solve for x
    x = 250,895,400,972.12/754,239.28
  6. Step 6: Final answer
    x = 332,646.96

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1.5x scale

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.