Home / 454,938.79-682,383.57-139,396.61

Finding the Fourth Proportional to 454,938.79, 682,383.57 and 139,396.61

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Solution

The fourth proportional to 454,938.79, 682,383.57 and 139,396.61 is: 209,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,938.79 : 682,383.57 = 139,396.61 : x
  2. Step 2: Convert to fraction form
    454,938.79/682,383.57 = 139,396.61/x
  3. Step 3: Cross multiply
    454,938.79x = 682,383.57 × 139,396.61
  4. Step 4: Simplify right side
    454,938.79x = 95,121,956,377.70
  5. Step 5: Solve for x
    x = 95,121,956,377.70/454,938.79
  6. Step 6: Final answer
    x = 209,087.37

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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.