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Finding the Fourth Proportional to 591.53, 889.20 and 548.39

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Solution

The fourth proportional to 591.53, 889.20 and 548.39 is: 824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.53 : 889.20 = 548.39 : x
  2. Step 2: Convert to fraction form
    591.53/889.20 = 548.39/x
  3. Step 3: Cross multiply
    591.53x = 889.20 × 548.39
  4. Step 4: Simplify right side
    591.53x = 487,623.94
  5. Step 5: Solve for x
    x = 487,623.94/591.53
  6. Step 6: Final answer
    x = 824.35

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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.