Home / 689,450.88-1,034,146.24-216,125.44

Finding the Fourth Proportional to 689,450.88, 1,034,146.24 and 216,125.44

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Solution

The fourth proportional to 689,450.88, 1,034,146.24 and 216,125.44 is: 324,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,450.88 : 1,034,146.24 = 216,125.44 : x
  2. Step 2: Convert to fraction form
    689,450.88/1,034,146.24 = 216,125.44/x
  3. Step 3: Cross multiply
    689,450.88x = 1,034,146.24 × 216,125.44
  4. Step 4: Simplify right side
    689,450.88x = 223,505,311,144.35
  5. Step 5: Solve for x
    x = 223,505,311,144.35/689,450.88
  6. Step 6: Final answer
    x = 324,178.73

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Double scale
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Similar ratio
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1.5x scale

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.