Home / 1,028,287.97-1,420,515.48-821,284.57

Finding the Fourth Proportional to 1,028,287.97, 1,420,515.48 and 821,284.57

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Solution

The fourth proportional to 1,028,287.97, 1,420,515.48 and 821,284.57 is: 1,134,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,287.97 : 1,420,515.48 = 821,284.57 : x
  2. Step 2: Convert to fraction form
    1,028,287.97/1,420,515.48 = 821,284.57/x
  3. Step 3: Cross multiply
    1,028,287.97x = 1,420,515.48 × 821,284.57
  4. Step 4: Simplify right side
    1,028,287.97x = 1,166,647,450,025.61
  5. Step 5: Solve for x
    x = 1,166,647,450,025.61/1,028,287.97
  6. Step 6: Final answer
    x = 1,134,553.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.