Home / 1,321,371.20-1,982,056.79-324,099.20

Finding the Fourth Proportional to 1,321,371.20, 1,982,056.79 and 324,099.20

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Solution

The fourth proportional to 1,321,371.20, 1,982,056.79 and 324,099.20 is: 486,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,371.20 : 1,982,056.79 = 324,099.20 : x
  2. Step 2: Convert to fraction form
    1,321,371.20/1,982,056.79 = 324,099.20/x
  3. Step 3: Cross multiply
    1,321,371.20x = 1,982,056.79 × 324,099.20
  4. Step 4: Simplify right side
    1,321,371.20x = 642,383,008,462.79
  5. Step 5: Solve for x
    x = 642,383,008,462.79/1,321,371.20
  6. Step 6: Final answer
    x = 486,148.79

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Double scale
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Similar ratio
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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.