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Finding the Fourth Proportional to 494,571.81, 741,753.82 and 139,502.79

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Solution

The fourth proportional to 494,571.81, 741,753.82 and 139,502.79 is: 209,224.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,571.81 : 741,753.82 = 139,502.79 : x
  2. Step 2: Convert to fraction form
    494,571.81/741,753.82 = 139,502.79/x
  3. Step 3: Cross multiply
    494,571.81x = 741,753.82 × 139,502.79
  4. Step 4: Simplify right side
    494,571.81x = 103,476,727,383.16
  5. Step 5: Solve for x
    x = 103,476,727,383.16/494,571.81
  6. Step 6: Final answer
    x = 209,224.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.