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Finding the Fourth Proportional to 502.94, 693.44 and 409.49

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Solution

The fourth proportional to 502.94, 693.44 and 409.49 is: 564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.94 : 693.44 = 409.49 : x
  2. Step 2: Convert to fraction form
    502.94/693.44 = 409.49/x
  3. Step 3: Cross multiply
    502.94x = 693.44 × 409.49
  4. Step 4: Simplify right side
    502.94x = 283,956.75
  5. Step 5: Solve for x
    x = 283,956.75/502.94
  6. Step 6: Final answer
    x = 564.59

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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.