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Finding the Fourth Proportional to 579.51, 798.39 and 548.73

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Solution

The fourth proportional to 579.51, 798.39 and 548.73 is: 755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.51 : 798.39 = 548.73 : x
  2. Step 2: Convert to fraction form
    579.51/798.39 = 548.73/x
  3. Step 3: Cross multiply
    579.51x = 798.39 × 548.73
  4. Step 4: Simplify right side
    579.51x = 438,100.54
  5. Step 5: Solve for x
    x = 438,100.54/579.51
  6. Step 6: Final answer
    x = 755.98

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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.