Home / 1,394,142.42-1,923,760.39-782,167.88

Finding the Fourth Proportional to 1,394,142.42, 1,923,760.39 and 782,167.88

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Solution

The fourth proportional to 1,394,142.42, 1,923,760.39 and 782,167.88 is: 1,079,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,142.42 : 1,923,760.39 = 782,167.88 : x
  2. Step 2: Convert to fraction form
    1,394,142.42/1,923,760.39 = 782,167.88/x
  3. Step 3: Cross multiply
    1,394,142.42x = 1,923,760.39 × 782,167.88
  4. Step 4: Simplify right side
    1,394,142.42x = 1,504,703,585,874.27
  5. Step 5: Solve for x
    x = 1,504,703,585,874.27/1,394,142.42
  6. Step 6: Final answer
    x = 1,079,304.07

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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.