Home / 1,131,035.62-1,560,834.21-621,770.80

Finding the Fourth Proportional to 1,131,035.62, 1,560,834.21 and 621,770.80

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Solution

The fourth proportional to 1,131,035.62, 1,560,834.21 and 621,770.80 is: 858,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,035.62 : 1,560,834.21 = 621,770.80 : x
  2. Step 2: Convert to fraction form
    1,131,035.62/1,560,834.21 = 621,770.80/x
  3. Step 3: Cross multiply
    1,131,035.62x = 1,560,834.21 × 621,770.80
  4. Step 4: Simplify right side
    1,131,035.62x = 970,481,135,419.07
  5. Step 5: Solve for x
    x = 970,481,135,419.07/1,131,035.62
  6. Step 6: Final answer
    x = 858,046.48

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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.