Home / 1,028,839-1,543,408.86-495,921.78

Finding the Fourth Proportional to 1,028,839, 1,543,408.86 and 495,921.78

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Solution

The fourth proportional to 1,028,839, 1,543,408.86 and 495,921.78 is: 743,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,839 : 1,543,408.86 = 495,921.78 : x
  2. Step 2: Convert to fraction form
    1,028,839/1,543,408.86 = 495,921.78/x
  3. Step 3: Cross multiply
    1,028,839x = 1,543,408.86 × 495,921.78
  4. Step 4: Simplify right side
    1,028,839x = 765,410,069,118.97
  5. Step 5: Solve for x
    x = 765,410,069,118.97/1,028,839
  6. Step 6: Final answer
    x = 743,955.15

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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.