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Finding the Fourth Proportional to 550.74, 819.02 and 533.43

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Solution

The fourth proportional to 550.74, 819.02 and 533.43 is: 793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.74 : 819.02 = 533.43 : x
  2. Step 2: Convert to fraction form
    550.74/819.02 = 533.43/x
  3. Step 3: Cross multiply
    550.74x = 819.02 × 533.43
  4. Step 4: Simplify right side
    550.74x = 436,889.84
  5. Step 5: Solve for x
    x = 436,889.84/550.74
  6. Step 6: Final answer
    x = 793.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.