Home / 494,125.80-681,380.82-422,742.12

Finding the Fourth Proportional to 494,125.80, 681,380.82 and 422,742.12

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Solution

The fourth proportional to 494,125.80, 681,380.82 and 422,742.12 is: 582,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,125.80 : 681,380.82 = 422,742.12 : x
  2. Step 2: Convert to fraction form
    494,125.80/681,380.82 = 422,742.12/x
  3. Step 3: Cross multiply
    494,125.80x = 681,380.82 × 422,742.12
  4. Step 4: Simplify right side
    494,125.80x = 288,048,372,374.14
  5. Step 5: Solve for x
    x = 288,048,372,374.14/494,125.80
  6. Step 6: Final answer
    x = 582,945.42

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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.