Home / 1,222,558.20-1,833,837.30-324,138.60

Finding the Fourth Proportional to 1,222,558.20, 1,833,837.30 and 324,138.60

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Solution

The fourth proportional to 1,222,558.20, 1,833,837.30 and 324,138.60 is: 486,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,558.20 : 1,833,837.30 = 324,138.60 : x
  2. Step 2: Convert to fraction form
    1,222,558.20/1,833,837.30 = 324,138.60/x
  3. Step 3: Cross multiply
    1,222,558.20x = 1,833,837.30 × 324,138.60
  4. Step 4: Simplify right side
    1,222,558.20x = 594,417,455,049.78
  5. Step 5: Solve for x
    x = 594,417,455,049.78/1,222,558.20
  6. Step 6: Final answer
    x = 486,207.90

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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.