Home / 754,574.28-1,131,738.42-221,970.78

Finding the Fourth Proportional to 754,574.28, 1,131,738.42 and 221,970.78

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Solution

The fourth proportional to 754,574.28, 1,131,738.42 and 221,970.78 is: 332,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,574.28 : 1,131,738.42 = 221,970.78 : x
  2. Step 2: Convert to fraction form
    754,574.28/1,131,738.42 = 221,970.78/x
  3. Step 3: Cross multiply
    754,574.28x = 1,131,738.42 × 221,970.78
  4. Step 4: Simplify right side
    754,574.28x = 251,212,859,843.37
  5. Step 5: Solve for x
    x = 251,212,859,843.37/754,574.28
  6. Step 6: Final answer
    x = 332,919.99

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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.