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Finding the Fourth Proportional to 548.39, 755.78 and 532.59

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Solution

The fourth proportional to 548.39, 755.78 and 532.59 is: 734.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.39 : 755.78 = 532.59 : x
  2. Step 2: Convert to fraction form
    548.39/755.78 = 532.59/x
  3. Step 3: Cross multiply
    548.39x = 755.78 × 532.59
  4. Step 4: Simplify right side
    548.39x = 402,518.21
  5. Step 5: Solve for x
    x = 402,518.21/548.39
  6. Step 6: Final answer
    x = 734.01

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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.