Home / 674,831.20-1,012,635.60-254,408.80

Finding the Fourth Proportional to 674,831.20, 1,012,635.60 and 254,408.80

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Solution

The fourth proportional to 674,831.20, 1,012,635.60 and 254,408.80 is: 381,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,831.20 : 1,012,635.60 = 254,408.80 : x
  2. Step 2: Convert to fraction form
    674,831.20/1,012,635.60 = 254,408.80/x
  3. Step 3: Cross multiply
    674,831.20x = 1,012,635.60 × 254,408.80
  4. Step 4: Simplify right side
    674,831.20x = 257,623,407,833.28
  5. Step 5: Solve for x
    x = 257,623,407,833.28/674,831.20
  6. Step 6: Final answer
    x = 381,759.78

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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.