Home / 1,313,103.38-1,812,221.98-769,695.75

Finding the Fourth Proportional to 1,313,103.38, 1,812,221.98 and 769,695.75

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Solution

The fourth proportional to 1,313,103.38, 1,812,221.98 and 769,695.75 is: 1,062,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,103.38 : 1,812,221.98 = 769,695.75 : x
  2. Step 2: Convert to fraction form
    1,313,103.38/1,812,221.98 = 769,695.75/x
  3. Step 3: Cross multiply
    1,313,103.38x = 1,812,221.98 × 769,695.75
  4. Step 4: Simplify right side
    1,313,103.38x = 1,394,859,554,138.35
  5. Step 5: Solve for x
    x = 1,394,859,554,138.35/1,313,103.38
  6. Step 6: Final answer
    x = 1,062,261.80

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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.