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Finding the Fourth Proportional to 494,778.89, 682,372.91 and 380,334.80

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Solution

The fourth proportional to 494,778.89, 682,372.91 and 380,334.80 is: 524,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,778.89 : 682,372.91 = 380,334.80 : x
  2. Step 2: Convert to fraction form
    494,778.89/682,372.91 = 380,334.80/x
  3. Step 3: Cross multiply
    494,778.89x = 682,372.91 × 380,334.80
  4. Step 4: Simplify right side
    494,778.89x = 259,530,164,250.27
  5. Step 5: Solve for x
    x = 259,530,164,250.27/494,778.89
  6. Step 6: Final answer
    x = 524,537.67

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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.