Home / 821,029.92-1,231,899.66-441,507.06

Finding the Fourth Proportional to 821,029.92, 1,231,899.66 and 441,507.06

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Solution

The fourth proportional to 821,029.92, 1,231,899.66 and 441,507.06 is: 662,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,029.92 : 1,231,899.66 = 441,507.06 : x
  2. Step 2: Convert to fraction form
    821,029.92/1,231,899.66 = 441,507.06/x
  3. Step 3: Cross multiply
    821,029.92x = 1,231,899.66 × 441,507.06
  4. Step 4: Simplify right side
    821,029.92x = 543,892,397,101.60
  5. Step 5: Solve for x
    x = 543,892,397,101.60/821,029.92
  6. Step 6: Final answer
    x = 662,451.37

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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.