Home / 1,313,645.17-1,812,850.46-769,650.79

Finding the Fourth Proportional to 1,313,645.17, 1,812,850.46 and 769,650.79

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Solution

The fourth proportional to 1,313,645.17, 1,812,850.46 and 769,650.79 is: 1,062,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,645.17 : 1,812,850.46 = 769,650.79 : x
  2. Step 2: Convert to fraction form
    1,313,645.17/1,812,850.46 = 769,650.79/x
  3. Step 3: Cross multiply
    1,313,645.17x = 1,812,850.46 × 769,650.79
  4. Step 4: Simplify right side
    1,313,645.17x = 1,395,261,784,842.61
  5. Step 5: Solve for x
    x = 1,395,261,784,842.61/1,313,645.17
  6. Step 6: Final answer
    x = 1,062,129.88

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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.