Home / 669,817.82-1,004,759.57-270,408.78

Finding the Fourth Proportional to 669,817.82, 1,004,759.57 and 270,408.78

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Solution

The fourth proportional to 669,817.82, 1,004,759.57 and 270,408.78 is: 405,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,817.82 : 1,004,759.57 = 270,408.78 : x
  2. Step 2: Convert to fraction form
    669,817.82/1,004,759.57 = 270,408.78/x
  3. Step 3: Cross multiply
    669,817.82x = 1,004,759.57 × 270,408.78
  4. Step 4: Simplify right side
    669,817.82x = 271,695,810,193.05
  5. Step 5: Solve for x
    x = 271,695,810,193.05/669,817.82
  6. Step 6: Final answer
    x = 405,626.43

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Half scale
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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.