Home / 1,115,958.97-1,538,577.89-722,792.41

Finding the Fourth Proportional to 1,115,958.97, 1,538,577.89 and 722,792.41

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Solution

The fourth proportional to 1,115,958.97, 1,538,577.89 and 722,792.41 is: 996,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,958.97 : 1,538,577.89 = 722,792.41 : x
  2. Step 2: Convert to fraction form
    1,115,958.97/1,538,577.89 = 722,792.41/x
  3. Step 3: Cross multiply
    1,115,958.97x = 1,538,577.89 × 722,792.41
  4. Step 4: Simplify right side
    1,115,958.97x = 1,112,072,421,085.82
  5. Step 5: Solve for x
    x = 1,112,072,421,085.82/1,115,958.97
  6. Step 6: Final answer
    x = 996,517.30

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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.