Home / 454,939.04-682,383.94-139,396.86

Finding the Fourth Proportional to 454,939.04, 682,383.94 and 139,396.86

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Solution

The fourth proportional to 454,939.04, 682,383.94 and 139,396.86 is: 209,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,939.04 : 682,383.94 = 139,396.86 : x
  2. Step 2: Convert to fraction form
    454,939.04/682,383.94 = 139,396.86/x
  3. Step 3: Cross multiply
    454,939.04x = 682,383.94 × 139,396.86
  4. Step 4: Simplify right side
    454,939.04x = 95,122,178,550.43
  5. Step 5: Solve for x
    x = 95,122,178,550.43/454,939.04
  6. Step 6: Final answer
    x = 209,087.75

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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.