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Finding the Fourth Proportional to 548.91, 822.45 and 446.24

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Solution

The fourth proportional to 548.91, 822.45 and 446.24 is: 668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.91 : 822.45 = 446.24 : x
  2. Step 2: Convert to fraction form
    548.91/822.45 = 446.24/x
  3. Step 3: Cross multiply
    548.91x = 822.45 × 446.24
  4. Step 4: Simplify right side
    548.91x = 367,013.82
  5. Step 5: Solve for x
    x = 367,013.82/548.91
  6. Step 6: Final answer
    x = 668.62

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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.