Home / 3,118,049.70-4,676,418.45-1,320,991.80

Finding the Fourth Proportional to 3,118,049.70, 4,676,418.45 and 1,320,991.80

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Solution

The fourth proportional to 3,118,049.70, 4,676,418.45 and 1,320,991.80 is: 1,981,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,049.70 : 4,676,418.45 = 1,320,991.80 : x
  2. Step 2: Convert to fraction form
    3,118,049.70/4,676,418.45 = 1,320,991.80/x
  3. Step 3: Cross multiply
    3,118,049.70x = 4,676,418.45 × 1,320,991.80
  4. Step 4: Simplify right side
    3,118,049.70x = 6,177,510,425,818.71
  5. Step 5: Solve for x
    x = 6,177,510,425,818.71/3,118,049.70
  6. Step 6: Final answer
    x = 1,981,209.74

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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.