Home / 1,313,644.92-1,812,850.11-769,650.54

Finding the Fourth Proportional to 1,313,644.92, 1,812,850.11 and 769,650.54

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Solution

The fourth proportional to 1,313,644.92, 1,812,850.11 and 769,650.54 is: 1,062,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,644.92 : 1,812,850.11 = 769,650.54 : x
  2. Step 2: Convert to fraction form
    1,313,644.92/1,812,850.11 = 769,650.54/x
  3. Step 3: Cross multiply
    1,313,644.92x = 1,812,850.11 × 769,650.54
  4. Step 4: Simplify right side
    1,313,644.92x = 1,395,261,066,100.56
  5. Step 5: Solve for x
    x = 1,395,261,066,100.56/1,313,644.92
  6. Step 6: Final answer
    x = 1,062,129.53

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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.