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Finding the Fourth Proportional to 494,616.77, 682,571.15 and 279,752.22

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Solution

The fourth proportional to 494,616.77, 682,571.15 and 279,752.22 is: 386,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,616.77 : 682,571.15 = 279,752.22 : x
  2. Step 2: Convert to fraction form
    494,616.77/682,571.15 = 279,752.22/x
  3. Step 3: Cross multiply
    494,616.77x = 682,571.15 × 279,752.22
  4. Step 4: Simplify right side
    494,616.77x = 190,950,793,121.69
  5. Step 5: Solve for x
    x = 190,950,793,121.69/494,616.77
  6. Step 6: Final answer
    x = 386,058.07

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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.