Home / 685,049.18-1,027,672.18-211,771.44

Finding the Fourth Proportional to 685,049.18, 1,027,672.18 and 211,771.44

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Solution

The fourth proportional to 685,049.18, 1,027,672.18 and 211,771.44 is: 317,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,049.18 : 1,027,672.18 = 211,771.44 : x
  2. Step 2: Convert to fraction form
    685,049.18/1,027,672.18 = 211,771.44/x
  3. Step 3: Cross multiply
    685,049.18x = 1,027,672.18 × 211,771.44
  4. Step 4: Simplify right side
    685,049.18x = 217,631,617,406.54
  5. Step 5: Solve for x
    x = 217,631,617,406.54/685,049.18
  6. Step 6: Final answer
    x = 317,687.58

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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.