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Finding the Fourth Proportional to 603.92, 908.91 and 544.28

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Solution

The fourth proportional to 603.92, 908.91 and 544.28 is: 819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.92 : 908.91 = 544.28 : x
  2. Step 2: Convert to fraction form
    603.92/908.91 = 544.28/x
  3. Step 3: Cross multiply
    603.92x = 908.91 × 544.28
  4. Step 4: Simplify right side
    603.92x = 494,701.53
  5. Step 5: Solve for x
    x = 494,701.53/603.92
  6. Step 6: Final answer
    x = 819.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.