Home / 412,819.80-619,229.70-132,365.40

Finding the Fourth Proportional to 412,819.80, 619,229.70 and 132,365.40

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Solution

The fourth proportional to 412,819.80, 619,229.70 and 132,365.40 is: 198,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,819.80 : 619,229.70 = 132,365.40 : x
  2. Step 2: Convert to fraction form
    412,819.80/619,229.70 = 132,365.40/x
  3. Step 3: Cross multiply
    412,819.80x = 619,229.70 × 132,365.40
  4. Step 4: Simplify right side
    412,819.80x = 81,964,586,932.38
  5. Step 5: Solve for x
    x = 81,964,586,932.38/412,819.80
  6. Step 6: Final answer
    x = 198,548.10

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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.