Home / 1,228,912.31-1,695,204.41-769,228.92

Finding the Fourth Proportional to 1,228,912.31, 1,695,204.41 and 769,228.92

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Solution

The fourth proportional to 1,228,912.31, 1,695,204.41 and 769,228.92 is: 1,061,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,912.31 : 1,695,204.41 = 769,228.92 : x
  2. Step 2: Convert to fraction form
    1,228,912.31/1,695,204.41 = 769,228.92/x
  3. Step 3: Cross multiply
    1,228,912.31x = 1,695,204.41 × 769,228.92
  4. Step 4: Simplify right side
    1,228,912.31x = 1,304,000,253,637.39
  5. Step 5: Solve for x
    x = 1,304,000,253,637.39/1,228,912.31
  6. Step 6: Final answer
    x = 1,061,101.14

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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.