Home / 392,822.45-589,267.61-108,512.88

Finding the Fourth Proportional to 392,822.45, 589,267.61 and 108,512.88

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Solution

The fourth proportional to 392,822.45, 589,267.61 and 108,512.88 is: 162,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,822.45 : 589,267.61 = 108,512.88 : x
  2. Step 2: Convert to fraction form
    392,822.45/589,267.61 = 108,512.88/x
  3. Step 3: Cross multiply
    392,822.45x = 589,267.61 × 108,512.88
  4. Step 4: Simplify right side
    392,822.45x = 63,943,124,909.25
  5. Step 5: Solve for x
    x = 63,943,124,909.25/392,822.45
  6. Step 6: Final answer
    x = 162,778.69

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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.