Home / 754,441.20-1,131,629.40-255,805.20

Finding the Fourth Proportional to 754,441.20, 1,131,629.40 and 255,805.20

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Solution

The fourth proportional to 754,441.20, 1,131,629.40 and 255,805.20 is: 383,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,441.20 : 1,131,629.40 = 255,805.20 : x
  2. Step 2: Convert to fraction form
    754,441.20/1,131,629.40 = 255,805.20/x
  3. Step 3: Cross multiply
    754,441.20x = 1,131,629.40 × 255,805.20
  4. Step 4: Simplify right side
    754,441.20x = 289,476,684,992.88
  5. Step 5: Solve for x
    x = 289,476,684,992.88/754,441.20
  6. Step 6: Final answer
    x = 383,696.81

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Similar ratio
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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.