Home / 1,324,687.20-1,984,989.60-986,139.60

Finding the Fourth Proportional to 1,324,687.20, 1,984,989.60 and 986,139.60

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Solution

The fourth proportional to 1,324,687.20, 1,984,989.60 and 986,139.60 is: 1,477,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,687.20 : 1,984,989.60 = 986,139.60 : x
  2. Step 2: Convert to fraction form
    1,324,687.20/1,984,989.60 = 986,139.60/x
  3. Step 3: Cross multiply
    1,324,687.20x = 1,984,989.60 × 986,139.60
  4. Step 4: Simplify right side
    1,324,687.20x = 1,957,476,850,148.16
  5. Step 5: Solve for x
    x = 1,957,476,850,148.16/1,324,687.20
  6. Step 6: Final answer
    x = 1,477,689.87

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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.