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Finding the Fourth Proportional to 796.24, 1,098.79 and 442.16

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Solution

The fourth proportional to 796.24, 1,098.79 and 442.16 is: 610.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.24 : 1,098.79 = 442.16 : x
  2. Step 2: Convert to fraction form
    796.24/1,098.79 = 442.16/x
  3. Step 3: Cross multiply
    796.24x = 1,098.79 × 442.16
  4. Step 4: Simplify right side
    796.24x = 485,838.24
  5. Step 5: Solve for x
    x = 485,838.24/796.24
  6. Step 6: Final answer
    x = 610.17

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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.