Home / 1,394,251.60-2,086,128.60-921,859.60

Finding the Fourth Proportional to 1,394,251.60, 2,086,128.60 and 921,859.60

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Solution

The fourth proportional to 1,394,251.60, 2,086,128.60 and 921,859.60 is: 1,379,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,251.60 : 2,086,128.60 = 921,859.60 : x
  2. Step 2: Convert to fraction form
    1,394,251.60/2,086,128.60 = 921,859.60/x
  3. Step 3: Cross multiply
    1,394,251.60x = 2,086,128.60 × 921,859.60
  4. Step 4: Simplify right side
    1,394,251.60x = 1,923,117,676,744.56
  5. Step 5: Solve for x
    x = 1,923,117,676,744.56/1,394,251.60
  6. Step 6: Final answer
    x = 1,379,318.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.