Home / 392,932.11-589,338.01-126,664.86

Finding the Fourth Proportional to 392,932.11, 589,338.01 and 126,664.86

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Solution

The fourth proportional to 392,932.11, 589,338.01 and 126,664.86 is: 189,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,932.11 : 589,338.01 = 126,664.86 : x
  2. Step 2: Convert to fraction form
    392,932.11/589,338.01 = 126,664.86/x
  3. Step 3: Cross multiply
    392,932.11x = 589,338.01 × 126,664.86
  4. Step 4: Simplify right side
    392,932.11x = 74,648,416,529.33
  5. Step 5: Solve for x
    x = 74,648,416,529.33/392,932.11
  6. Step 6: Final answer
    x = 189,977.90

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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.