Home / 807,471.20-1,213,831.20-691,997.60

Finding the Fourth Proportional to 807,471.20, 1,213,831.20 and 691,997.60

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Solution

The fourth proportional to 807,471.20, 1,213,831.20 and 691,997.60 is: 1,040,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,471.20 : 1,213,831.20 = 691,997.60 : x
  2. Step 2: Convert to fraction form
    807,471.20/1,213,831.20 = 691,997.60/x
  3. Step 3: Cross multiply
    807,471.20x = 1,213,831.20 × 691,997.60
  4. Step 4: Simplify right side
    807,471.20x = 839,968,277,205.12
  5. Step 5: Solve for x
    x = 839,968,277,205.12/807,471.20
  6. Step 6: Final answer
    x = 1,040,245.49

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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.