Home / 492,481.20-738,721.80-192,862.20

Finding the Fourth Proportional to 492,481.20, 738,721.80 and 192,862.20

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Solution

The fourth proportional to 492,481.20, 738,721.80 and 192,862.20 is: 289,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,481.20 : 738,721.80 = 192,862.20 : x
  2. Step 2: Convert to fraction form
    492,481.20/738,721.80 = 192,862.20/x
  3. Step 3: Cross multiply
    492,481.20x = 738,721.80 × 192,862.20
  4. Step 4: Simplify right side
    492,481.20x = 142,471,511,535.96
  5. Step 5: Solve for x
    x = 142,471,511,535.96/492,481.20
  6. Step 6: Final answer
    x = 289,293.30

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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.