Home / 1,942,494.20-2,912,186.10-819,639.80

Finding the Fourth Proportional to 1,942,494.20, 2,912,186.10 and 819,639.80

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Solution

The fourth proportional to 1,942,494.20, 2,912,186.10 and 819,639.80 is: 1,228,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,494.20 : 2,912,186.10 = 819,639.80 : x
  2. Step 2: Convert to fraction form
    1,942,494.20/2,912,186.10 = 819,639.80/x
  3. Step 3: Cross multiply
    1,942,494.20x = 2,912,186.10 × 819,639.80
  4. Step 4: Simplify right side
    1,942,494.20x = 2,386,943,632,566.78
  5. Step 5: Solve for x
    x = 2,386,943,632,566.78/1,942,494.20
  6. Step 6: Final answer
    x = 1,228,803.48

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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.