Home / 392,822.12-589,267.12-108,512.57

Finding the Fourth Proportional to 392,822.12, 589,267.12 and 108,512.57

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Solution

The fourth proportional to 392,822.12, 589,267.12 and 108,512.57 is: 162,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,822.12 : 589,267.12 = 108,512.57 : x
  2. Step 2: Convert to fraction form
    392,822.12/589,267.12 = 108,512.57/x
  3. Step 3: Cross multiply
    392,822.12x = 589,267.12 × 108,512.57
  4. Step 4: Simplify right side
    392,822.12x = 63,942,889,607.70
  5. Step 5: Solve for x
    x = 63,942,889,607.70/392,822.12
  6. Step 6: Final answer
    x = 162,778.23

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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.