Home / 681,816.75-1,022,872.76-261,092.64

Finding the Fourth Proportional to 681,816.75, 1,022,872.76 and 261,092.64

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Solution

The fourth proportional to 681,816.75, 1,022,872.76 and 261,092.64 is: 391,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,816.75 : 1,022,872.76 = 261,092.64 : x
  2. Step 2: Convert to fraction form
    681,816.75/1,022,872.76 = 261,092.64/x
  3. Step 3: Cross multiply
    681,816.75x = 1,022,872.76 × 261,092.64
  4. Step 4: Simplify right side
    681,816.75x = 267,064,547,987.02
  5. Step 5: Solve for x
    x = 267,064,547,987.02/681,816.75
  6. Step 6: Final answer
    x = 391,695.49

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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.