Home / 1,970,517.11-2,957,102.20-691,136.45

Finding the Fourth Proportional to 1,970,517.11, 2,957,102.20 and 691,136.45

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Solution

The fourth proportional to 1,970,517.11, 2,957,102.20 and 691,136.45 is: 1,037,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,517.11 : 2,957,102.20 = 691,136.45 : x
  2. Step 2: Convert to fraction form
    1,970,517.11/2,957,102.20 = 691,136.45/x
  3. Step 3: Cross multiply
    1,970,517.11x = 2,957,102.20 × 691,136.45
  4. Step 4: Simplify right side
    1,970,517.11x = 2,043,761,126,708.79
  5. Step 5: Solve for x
    x = 2,043,761,126,708.79/1,970,517.11
  6. Step 6: Final answer
    x = 1,037,169.95

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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.