Home / 1,131,247.62-1,561,127.58-621,982.80

Finding the Fourth Proportional to 1,131,247.62, 1,561,127.58 and 621,982.80

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Solution

The fourth proportional to 1,131,247.62, 1,561,127.58 and 621,982.80 is: 858,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,247.62 : 1,561,127.58 = 621,982.80 : x
  2. Step 2: Convert to fraction form
    1,131,247.62/1,561,127.58 = 621,982.80/x
  3. Step 3: Cross multiply
    1,131,247.62x = 1,561,127.58 × 621,982.80
  4. Step 4: Simplify right side
    1,131,247.62x = 970,994,503,365.62
  5. Step 5: Solve for x
    x = 970,994,503,365.62/1,131,247.62
  6. Step 6: Final answer
    x = 858,339.49

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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.