Home / 494,155.10-681,424.89-422,771.42

Finding the Fourth Proportional to 494,155.10, 681,424.89 and 422,771.42

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Solution

The fourth proportional to 494,155.10, 681,424.89 and 422,771.42 is: 582,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,155.10 : 681,424.89 = 422,771.42 : x
  2. Step 2: Convert to fraction form
    494,155.10/681,424.89 = 422,771.42/x
  3. Step 3: Cross multiply
    494,155.10x = 681,424.89 × 422,771.42
  4. Step 4: Simplify right side
    494,155.10x = 288,086,964,961.52
  5. Step 5: Solve for x
    x = 288,086,964,961.52/494,155.10
  6. Step 6: Final answer
    x = 582,988.96

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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.