Home / 726,072.15-1,002,427.85-468,040.78

Finding the Fourth Proportional to 726,072.15, 1,002,427.85 and 468,040.78

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Solution

The fourth proportional to 726,072.15, 1,002,427.85 and 468,040.78 is: 646,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,072.15 : 1,002,427.85 = 468,040.78 : x
  2. Step 2: Convert to fraction form
    726,072.15/1,002,427.85 = 468,040.78/x
  3. Step 3: Cross multiply
    726,072.15x = 1,002,427.85 × 468,040.78
  4. Step 4: Simplify right side
    726,072.15x = 469,177,115,230.86
  5. Step 5: Solve for x
    x = 469,177,115,230.86/726,072.15
  6. Step 6: Final answer
    x = 646,185.25

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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.