Home / 1,986,883.76-2,980,770.08-724,711.39

Finding the Fourth Proportional to 1,986,883.76, 2,980,770.08 and 724,711.39

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Solution

The fourth proportional to 1,986,883.76, 2,980,770.08 and 724,711.39 is: 1,087,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,883.76 : 2,980,770.08 = 724,711.39 : x
  2. Step 2: Convert to fraction form
    1,986,883.76/2,980,770.08 = 724,711.39/x
  3. Step 3: Cross multiply
    1,986,883.76x = 2,980,770.08 × 724,711.39
  4. Step 4: Simplify right side
    1,986,883.76x = 2,160,198,016,871.73
  5. Step 5: Solve for x
    x = 2,160,198,016,871.73/1,986,883.76
  6. Step 6: Final answer
    x = 1,087,229.19

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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.