Home / 836,395.61-1,255,224.33-387,431.46

Finding the Fourth Proportional to 836,395.61, 1,255,224.33 and 387,431.46

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Solution

The fourth proportional to 836,395.61, 1,255,224.33 and 387,431.46 is: 581,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,395.61 : 1,255,224.33 = 387,431.46 : x
  2. Step 2: Convert to fraction form
    836,395.61/1,255,224.33 = 387,431.46/x
  3. Step 3: Cross multiply
    836,395.61x = 1,255,224.33 × 387,431.46
  4. Step 4: Simplify right side
    836,395.61x = 486,313,394,799.42
  5. Step 5: Solve for x
    x = 486,313,394,799.42/836,395.61
  6. Step 6: Final answer
    x = 581,439.44

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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.