Home / 1,138,034.97-1,570,469.91-621,777.78

Finding the Fourth Proportional to 1,138,034.97, 1,570,469.91 and 621,777.78

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Solution

The fourth proportional to 1,138,034.97, 1,570,469.91 and 621,777.78 is: 858,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,034.97 : 1,570,469.91 = 621,777.78 : x
  2. Step 2: Convert to fraction form
    1,138,034.97/1,570,469.91 = 621,777.78/x
  3. Step 3: Cross multiply
    1,138,034.97x = 1,570,469.91 × 621,777.78
  4. Step 4: Simplify right side
    1,138,034.97x = 976,483,294,196.60
  5. Step 5: Solve for x
    x = 976,483,294,196.60/1,138,034.97
  6. Step 6: Final answer
    x = 858,043.31

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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.