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Finding the Fourth Proportional to 548.04, 760.20 and 528.60

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Solution

The fourth proportional to 548.04, 760.20 and 528.60 is: 733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.04 : 760.20 = 528.60 : x
  2. Step 2: Convert to fraction form
    548.04/760.20 = 528.60/x
  3. Step 3: Cross multiply
    548.04x = 760.20 × 528.60
  4. Step 4: Simplify right side
    548.04x = 401,841.72
  5. Step 5: Solve for x
    x = 401,841.72/548.04
  6. Step 6: Final answer
    x = 733.23

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.