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Finding the Fourth Proportional to 494,778.51, 682,372.39 and 380,334.42

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Solution

The fourth proportional to 494,778.51, 682,372.39 and 380,334.42 is: 524,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,778.51 : 682,372.39 = 380,334.42 : x
  2. Step 2: Convert to fraction form
    494,778.51/682,372.39 = 380,334.42/x
  3. Step 3: Cross multiply
    494,778.51x = 682,372.39 × 380,334.42
  4. Step 4: Simplify right side
    494,778.51x = 259,529,707,174.66
  5. Step 5: Solve for x
    x = 259,529,707,174.66/494,778.51
  6. Step 6: Final answer
    x = 524,537.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.