Home / 689,489.75-1,034,234.63-216,212.01

Finding the Fourth Proportional to 689,489.75, 1,034,234.63 and 216,212.01

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Solution

The fourth proportional to 689,489.75, 1,034,234.63 and 216,212.01 is: 324,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,489.75 : 1,034,234.63 = 216,212.01 : x
  2. Step 2: Convert to fraction form
    689,489.75/1,034,234.63 = 216,212.01/x
  3. Step 3: Cross multiply
    689,489.75x = 1,034,234.63 × 216,212.01
  4. Step 4: Simplify right side
    689,489.75x = 223,613,947,082.85
  5. Step 5: Solve for x
    x = 223,613,947,082.85/689,489.75
  6. Step 6: Final answer
    x = 324,318.02

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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.