Home / 754,435.20-1,131,620.40-255,799.20

Finding the Fourth Proportional to 754,435.20, 1,131,620.40 and 255,799.20

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Solution

The fourth proportional to 754,435.20, 1,131,620.40 and 255,799.20 is: 383,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,435.20 : 1,131,620.40 = 255,799.20 : x
  2. Step 2: Convert to fraction form
    754,435.20/1,131,620.40 = 255,799.20/x
  3. Step 3: Cross multiply
    754,435.20x = 1,131,620.40 × 255,799.20
  4. Step 4: Simplify right side
    754,435.20x = 289,467,593,023.68
  5. Step 5: Solve for x
    x = 289,467,593,023.68/754,435.20
  6. Step 6: Final answer
    x = 383,687.81

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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.