Home / 1,335,139.92-2,002,687.98-324,270.12

Finding the Fourth Proportional to 1,335,139.92, 2,002,687.98 and 324,270.12

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Solution

The fourth proportional to 1,335,139.92, 2,002,687.98 and 324,270.12 is: 486,399.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,139.92 : 2,002,687.98 = 324,270.12 : x
  2. Step 2: Convert to fraction form
    1,335,139.92/2,002,687.98 = 324,270.12/x
  3. Step 3: Cross multiply
    1,335,139.92x = 2,002,687.98 × 324,270.12
  4. Step 4: Simplify right side
    1,335,139.92x = 649,411,871,597.16
  5. Step 5: Solve for x
    x = 649,411,871,597.16/1,335,139.92
  6. Step 6: Final answer
    x = 486,399.86

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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.