Home / 454,936.85-682,380.65-139,394.67

Finding the Fourth Proportional to 454,936.85, 682,380.65 and 139,394.67

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Solution

The fourth proportional to 454,936.85, 682,380.65 and 139,394.67 is: 209,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,936.85 : 682,380.65 = 139,394.67 : x
  2. Step 2: Convert to fraction form
    454,936.85/682,380.65 = 139,394.67/x
  3. Step 3: Cross multiply
    454,936.85x = 682,380.65 × 139,394.67
  4. Step 4: Simplify right side
    454,936.85x = 95,120,223,310.69
  5. Step 5: Solve for x
    x = 95,120,223,310.69/454,936.85
  6. Step 6: Final answer
    x = 209,084.46

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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.