Home / 1,131,195.63-1,561,010.08-621,894.09

Finding the Fourth Proportional to 1,131,195.63, 1,561,010.08 and 621,894.09

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Solution

The fourth proportional to 1,131,195.63, 1,561,010.08 and 621,894.09 is: 858,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,195.63 : 1,561,010.08 = 621,894.09 : x
  2. Step 2: Convert to fraction form
    1,131,195.63/1,561,010.08 = 621,894.09/x
  3. Step 3: Cross multiply
    1,131,195.63x = 1,561,010.08 × 621,894.09
  4. Step 4: Simplify right side
    1,131,195.63x = 970,782,943,182.43
  5. Step 5: Solve for x
    x = 970,782,943,182.43/1,131,195.63
  6. Step 6: Final answer
    x = 858,191.91

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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.