Home / 1,398,517.81-2,098,897.72-724,791.73

Finding the Fourth Proportional to 1,398,517.81, 2,098,897.72 and 724,791.73

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Solution

The fourth proportional to 1,398,517.81, 2,098,897.72 and 724,791.73 is: 1,087,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,517.81 : 2,098,897.72 = 724,791.73 : x
  2. Step 2: Convert to fraction form
    1,398,517.81/2,098,897.72 = 724,791.73/x
  3. Step 3: Cross multiply
    1,398,517.81x = 2,098,897.72 × 724,791.73
  4. Step 4: Simplify right side
    1,398,517.81x = 1,521,263,709,571.86
  5. Step 5: Solve for x
    x = 1,521,263,709,571.86/1,398,517.81
  6. Step 6: Final answer
    x = 1,087,768.56

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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.