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Finding the Fourth Proportional to 544.92, 817.58 and 429.49

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Solution

The fourth proportional to 544.92, 817.58 and 429.49 is: 644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.92 : 817.58 = 429.49 : x
  2. Step 2: Convert to fraction form
    544.92/817.58 = 429.49/x
  3. Step 3: Cross multiply
    544.92x = 817.58 × 429.49
  4. Step 4: Simplify right side
    544.92x = 351,142.43
  5. Step 5: Solve for x
    x = 351,142.43/544.92
  6. Step 6: Final answer
    x = 644.39

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Similar ratio
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1.5x scale

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.