Home / 494,778.39-682,372.22-380,334.30

Finding the Fourth Proportional to 494,778.39, 682,372.22 and 380,334.30

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Solution

The fourth proportional to 494,778.39, 682,372.22 and 380,334.30 is: 524,536.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,778.39 : 682,372.22 = 380,334.30 : x
  2. Step 2: Convert to fraction form
    494,778.39/682,372.22 = 380,334.30/x
  3. Step 3: Cross multiply
    494,778.39x = 682,372.22 × 380,334.30
  4. Step 4: Simplify right side
    494,778.39x = 259,529,560,633.15
  5. Step 5: Solve for x
    x = 259,529,560,633.15/494,778.39
  6. Step 6: Final answer
    x = 524,536.98

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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.