Home / 1,321,431.40-1,982,147.10-480,010.60

Finding the Fourth Proportional to 1,321,431.40, 1,982,147.10 and 480,010.60

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Solution

The fourth proportional to 1,321,431.40, 1,982,147.10 and 480,010.60 is: 720,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,431.40 : 1,982,147.10 = 480,010.60 : x
  2. Step 2: Convert to fraction form
    1,321,431.40/1,982,147.10 = 480,010.60/x
  3. Step 3: Cross multiply
    1,321,431.40x = 1,982,147.10 × 480,010.60
  4. Step 4: Simplify right side
    1,321,431.40x = 951,451,618,759.26
  5. Step 5: Solve for x
    x = 951,451,618,759.26/1,321,431.40
  6. Step 6: Final answer
    x = 720,015.90

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Double scale
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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.