Home / 868,380.21-1,302,558.57-388,481.13

Finding the Fourth Proportional to 868,380.21, 1,302,558.57 and 388,481.13

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Solution

The fourth proportional to 868,380.21, 1,302,558.57 and 388,481.13 is: 582,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,380.21 : 1,302,558.57 = 388,481.13 : x
  2. Step 2: Convert to fraction form
    868,380.21/1,302,558.57 = 388,481.13/x
  3. Step 3: Cross multiply
    868,380.21x = 1,302,558.57 × 388,481.13
  4. Step 4: Simplify right side
    868,380.21x = 506,019,425,164.78
  5. Step 5: Solve for x
    x = 506,019,425,164.78/868,380.21
  6. Step 6: Final answer
    x = 582,716.44

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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.