Home / 1,305,255.70-1,957,936.47-621,791.05

Finding the Fourth Proportional to 1,305,255.70, 1,957,936.47 and 621,791.05

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Solution

The fourth proportional to 1,305,255.70, 1,957,936.47 and 621,791.05 is: 932,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,255.70 : 1,957,936.47 = 621,791.05 : x
  2. Step 2: Convert to fraction form
    1,305,255.70/1,957,936.47 = 621,791.05/x
  3. Step 3: Cross multiply
    1,305,255.70x = 1,957,936.47 × 621,791.05
  4. Step 4: Simplify right side
    1,305,255.70x = 1,217,427,373,514.59
  5. Step 5: Solve for x
    x = 1,217,427,373,514.59/1,305,255.70
  6. Step 6: Final answer
    x = 932,711.78

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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.