Home / 392,821.49-589,266.18-108,511.95

Finding the Fourth Proportional to 392,821.49, 589,266.18 and 108,511.95

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Solution

The fourth proportional to 392,821.49, 589,266.18 and 108,511.95 is: 162,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,821.49 : 589,266.18 = 108,511.95 : x
  2. Step 2: Convert to fraction form
    392,821.49/589,266.18 = 108,511.95/x
  3. Step 3: Cross multiply
    392,821.49x = 589,266.18 × 108,511.95
  4. Step 4: Simplify right side
    392,821.49x = 63,942,422,260.85
  5. Step 5: Solve for x
    x = 63,942,422,260.85/392,821.49
  6. Step 6: Final answer
    x = 162,777.30

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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.