Home / 754,425.20-1,131,605.40-255,789.20

Finding the Fourth Proportional to 754,425.20, 1,131,605.40 and 255,789.20

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Solution

The fourth proportional to 754,425.20, 1,131,605.40 and 255,789.20 is: 383,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,425.20 : 1,131,605.40 = 255,789.20 : x
  2. Step 2: Convert to fraction form
    754,425.20/1,131,605.40 = 255,789.20/x
  3. Step 3: Cross multiply
    754,425.20x = 1,131,605.40 × 255,789.20
  4. Step 4: Simplify right side
    754,425.20x = 289,452,439,981.68
  5. Step 5: Solve for x
    x = 289,452,439,981.68/754,425.20
  6. Step 6: Final answer
    x = 383,672.81

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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.