Home / 392,821.74-589,266.56-108,512.20

Finding the Fourth Proportional to 392,821.74, 589,266.56 and 108,512.20

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Solution

The fourth proportional to 392,821.74, 589,266.56 and 108,512.20 is: 162,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,821.74 : 589,266.56 = 108,512.20 : x
  2. Step 2: Convert to fraction form
    392,821.74/589,266.56 = 108,512.20/x
  3. Step 3: Cross multiply
    392,821.74x = 589,266.56 × 108,512.20
  4. Step 4: Simplify right side
    392,821.74x = 63,942,610,812.03
  5. Step 5: Solve for x
    x = 63,942,610,812.03/392,821.74
  6. Step 6: Final answer
    x = 162,777.68

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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.