Home / 1,942,496.20-2,912,189.10-819,641.80

Finding the Fourth Proportional to 1,942,496.20, 2,912,189.10 and 819,641.80

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Solution

The fourth proportional to 1,942,496.20, 2,912,189.10 and 819,641.80 is: 1,228,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,496.20 : 2,912,189.10 = 819,641.80 : x
  2. Step 2: Convert to fraction form
    1,942,496.20/2,912,189.10 = 819,641.80/x
  3. Step 3: Cross multiply
    1,942,496.20x = 2,912,189.10 × 819,641.80
  4. Step 4: Simplify right side
    1,942,496.20x = 2,386,951,915,864.38
  5. Step 5: Solve for x
    x = 2,386,951,915,864.38/1,942,496.20
  6. Step 6: Final answer
    x = 1,228,806.48

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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.