Home / 685,223.14-1,027,760.85-179,834.78

Finding the Fourth Proportional to 685,223.14, 1,027,760.85 and 179,834.78

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Solution

The fourth proportional to 685,223.14, 1,027,760.85 and 179,834.78 is: 269,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,223.14 : 1,027,760.85 = 179,834.78 : x
  2. Step 2: Convert to fraction form
    685,223.14/1,027,760.85 = 179,834.78/x
  3. Step 3: Cross multiply
    685,223.14x = 1,027,760.85 × 179,834.78
  4. Step 4: Simplify right side
    685,223.14x = 184,827,146,352.36
  5. Step 5: Solve for x
    x = 184,827,146,352.36/685,223.14
  6. Step 6: Final answer
    x = 269,732.79

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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.