Home / 454,938.72-682,383.46-139,396.54

Finding the Fourth Proportional to 454,938.72, 682,383.46 and 139,396.54

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Solution

The fourth proportional to 454,938.72, 682,383.46 and 139,396.54 is: 209,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,938.72 : 682,383.46 = 139,396.54 : x
  2. Step 2: Convert to fraction form
    454,938.72/682,383.46 = 139,396.54/x
  3. Step 3: Cross multiply
    454,938.72x = 682,383.46 × 139,396.54
  4. Step 4: Simplify right side
    454,938.72x = 95,121,893,277.23
  5. Step 5: Solve for x
    x = 95,121,893,277.23/454,938.72
  6. Step 6: Final answer
    x = 209,087.27

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1.5x scale

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.