Home / 1,335,165.12-2,002,747.68-324,280.80

Finding the Fourth Proportional to 1,335,165.12, 2,002,747.68 and 324,280.80

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Solution

The fourth proportional to 1,335,165.12, 2,002,747.68 and 324,280.80 is: 486,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,165.12 : 2,002,747.68 = 324,280.80 : x
  2. Step 2: Convert to fraction form
    1,335,165.12/2,002,747.68 = 324,280.80/x
  3. Step 3: Cross multiply
    1,335,165.12x = 2,002,747.68 × 324,280.80
  4. Step 4: Simplify right side
    1,335,165.12x = 649,452,619,868.54
  5. Step 5: Solve for x
    x = 649,452,619,868.54/1,335,165.12
  6. Step 6: Final answer
    x = 486,421.20

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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.