Home / 3,659,515.20-5,489,272.80-1,000,123.20

Finding the Fourth Proportional to 3,659,515.20, 5,489,272.80 and 1,000,123.20

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Solution

The fourth proportional to 3,659,515.20, 5,489,272.80 and 1,000,123.20 is: 1,500,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659,515.20 : 5,489,272.80 = 1,000,123.20 : x
  2. Step 2: Convert to fraction form
    3,659,515.20/5,489,272.80 = 1,000,123.20/x
  3. Step 3: Cross multiply
    3,659,515.20x = 5,489,272.80 × 1,000,123.20
  4. Step 4: Simplify right side
    3,659,515.20x = 5,489,949,078,408.96
  5. Step 5: Solve for x
    x = 5,489,949,078,408.96/3,659,515.20
  6. Step 6: Final answer
    x = 1,500,184.80

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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.