Home / 1,443,845.86-1,991,062.11-960,431.38

Finding the Fourth Proportional to 1,443,845.86, 1,991,062.11 and 960,431.38

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Solution

The fourth proportional to 1,443,845.86, 1,991,062.11 and 960,431.38 is: 1,324,433.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,845.86 : 1,991,062.11 = 960,431.38 : x
  2. Step 2: Convert to fraction form
    1,443,845.86/1,991,062.11 = 960,431.38/x
  3. Step 3: Cross multiply
    1,443,845.86x = 1,991,062.11 × 960,431.38
  4. Step 4: Simplify right side
    1,443,845.86x = 1,912,278,528,596.97
  5. Step 5: Solve for x
    x = 1,912,278,528,596.97/1,443,845.86
  6. Step 6: Final answer
    x = 1,324,433.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.