Home / 681,963.20-1,022,944.80-664,467.20

Finding the Fourth Proportional to 681,963.20, 1,022,944.80 and 664,467.20

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Solution

The fourth proportional to 681,963.20, 1,022,944.80 and 664,467.20 is: 996,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,963.20 : 1,022,944.80 = 664,467.20 : x
  2. Step 2: Convert to fraction form
    681,963.20/1,022,944.80 = 664,467.20/x
  3. Step 3: Cross multiply
    681,963.20x = 1,022,944.80 × 664,467.20
  4. Step 4: Simplify right side
    681,963.20x = 679,713,267,010.56
  5. Step 5: Solve for x
    x = 679,713,267,010.56/681,963.20
  6. Step 6: Final answer
    x = 996,700.80

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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.