Home / 821,219.33-1,231,831.89-252,596.60

Finding the Fourth Proportional to 821,219.33, 1,231,831.89 and 252,596.60

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Solution

The fourth proportional to 821,219.33, 1,231,831.89 and 252,596.60 is: 378,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,219.33 : 1,231,831.89 = 252,596.60 : x
  2. Step 2: Convert to fraction form
    821,219.33/1,231,831.89 = 252,596.60/x
  3. Step 3: Cross multiply
    821,219.33x = 1,231,831.89 × 252,596.60
  4. Step 4: Simplify right side
    821,219.33x = 311,156,541,026.42
  5. Step 5: Solve for x
    x = 311,156,541,026.42/821,219.33
  6. Step 6: Final answer
    x = 378,895.78

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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.