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Finding the Fourth Proportional to 547.36, 817.14 and 528.13

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Solution

The fourth proportional to 547.36, 817.14 and 528.13 is: 788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.36 : 817.14 = 528.13 : x
  2. Step 2: Convert to fraction form
    547.36/817.14 = 528.13/x
  3. Step 3: Cross multiply
    547.36x = 817.14 × 528.13
  4. Step 4: Simplify right side
    547.36x = 431,557.73
  5. Step 5: Solve for x
    x = 431,557.73/547.36
  6. Step 6: Final answer
    x = 788.44

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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.