Home / 3,649,605.60-5,474,408.40-990,213.60

Finding the Fourth Proportional to 3,649,605.60, 5,474,408.40 and 990,213.60

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Solution

The fourth proportional to 3,649,605.60, 5,474,408.40 and 990,213.60 is: 1,485,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649,605.60 : 5,474,408.40 = 990,213.60 : x
  2. Step 2: Convert to fraction form
    3,649,605.60/5,474,408.40 = 990,213.60/x
  3. Step 3: Cross multiply
    3,649,605.60x = 5,474,408.40 × 990,213.60
  4. Step 4: Simplify right side
    3,649,605.60x = 5,420,833,649,634.24
  5. Step 5: Solve for x
    x = 5,420,833,649,634.24/3,649,605.60
  6. Step 6: Final answer
    x = 1,485,320.40

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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.