Home / 392,819.24-589,262.80-108,509.69

Finding the Fourth Proportional to 392,819.24, 589,262.80 and 108,509.69

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Solution

The fourth proportional to 392,819.24, 589,262.80 and 108,509.69 is: 162,773.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,819.24 : 589,262.80 = 108,509.69 : x
  2. Step 2: Convert to fraction form
    392,819.24/589,262.80 = 108,509.69/x
  3. Step 3: Cross multiply
    392,819.24x = 589,262.80 × 108,509.69
  4. Step 4: Simplify right side
    392,819.24x = 63,940,725,161.87
  5. Step 5: Solve for x
    x = 63,940,725,161.87/392,819.24
  6. Step 6: Final answer
    x = 162,773.92

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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.