Home / 754,480.70-1,131,721.35-185,872.86

Finding the Fourth Proportional to 754,480.70, 1,131,721.35 and 185,872.86

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Solution

The fourth proportional to 754,480.70, 1,131,721.35 and 185,872.86 is: 278,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,480.70 : 1,131,721.35 = 185,872.86 : x
  2. Step 2: Convert to fraction form
    754,480.70/1,131,721.35 = 185,872.86/x
  3. Step 3: Cross multiply
    754,480.70x = 1,131,721.35 × 185,872.86
  4. Step 4: Simplify right side
    754,480.70x = 210,356,284,047.56
  5. Step 5: Solve for x
    x = 210,356,284,047.56/754,480.70
  6. Step 6: Final answer
    x = 278,809.36

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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.