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Finding the Fourth Proportional to 494,609.86, 682,557.06 and 279,791.92

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Solution

The fourth proportional to 494,609.86, 682,557.06 and 279,791.92 is: 386,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,609.86 : 682,557.06 = 279,791.92 : x
  2. Step 2: Convert to fraction form
    494,609.86/682,557.06 = 279,791.92/x
  3. Step 3: Cross multiply
    494,609.86x = 682,557.06 × 279,791.92
  4. Step 4: Simplify right side
    494,609.86x = 190,973,950,326.96
  5. Step 5: Solve for x
    x = 190,973,950,326.96/494,609.86
  6. Step 6: Final answer
    x = 386,110.28

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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.