Home / 728,379.44-1,098,398-718,406.72

Finding the Fourth Proportional to 728,379.44, 1,098,398 and 718,406.72

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Solution

The fourth proportional to 728,379.44, 1,098,398 and 718,406.72 is: 1,083,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,379.44 : 1,098,398 = 718,406.72 : x
  2. Step 2: Convert to fraction form
    728,379.44/1,098,398 = 718,406.72/x
  3. Step 3: Cross multiply
    728,379.44x = 1,098,398 × 718,406.72
  4. Step 4: Simplify right side
    728,379.44x = 789,096,504,434.56
  5. Step 5: Solve for x
    x = 789,096,504,434.56/728,379.44
  6. Step 6: Final answer
    x = 1,083,359.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.