Home / 392,785.28-589,177.13-108,475.10

Finding the Fourth Proportional to 392,785.28, 589,177.13 and 108,475.10

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Solution

The fourth proportional to 392,785.28, 589,177.13 and 108,475.10 is: 162,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,785.28 : 589,177.13 = 108,475.10 : x
  2. Step 2: Convert to fraction form
    392,785.28/589,177.13 = 108,475.10/x
  3. Step 3: Cross multiply
    392,785.28x = 589,177.13 × 108,475.10
  4. Step 4: Simplify right side
    392,785.28x = 63,911,048,094.46
  5. Step 5: Solve for x
    x = 63,911,048,094.46/392,785.28
  6. Step 6: Final answer
    x = 162,712.43

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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.