Home / 752,286.42-1,128,611.88-432,642.87

Finding the Fourth Proportional to 752,286.42, 1,128,611.88 and 432,642.87

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Solution

The fourth proportional to 752,286.42, 1,128,611.88 and 432,642.87 is: 649,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,286.42 : 1,128,611.88 = 432,642.87 : x
  2. Step 2: Convert to fraction form
    752,286.42/1,128,611.88 = 432,642.87/x
  3. Step 3: Cross multiply
    752,286.42x = 1,128,611.88 × 432,642.87
  4. Step 4: Simplify right side
    752,286.42x = 488,285,882,879.30
  5. Step 5: Solve for x
    x = 488,285,882,879.30/752,286.42
  6. Step 6: Final answer
    x = 649,069.12

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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.