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Finding the Fourth Proportional to 544.89, 821.61 and 499.53

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Solution

The fourth proportional to 544.89, 821.61 and 499.53 is: 753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.89 : 821.61 = 499.53 : x
  2. Step 2: Convert to fraction form
    544.89/821.61 = 499.53/x
  3. Step 3: Cross multiply
    544.89x = 821.61 × 499.53
  4. Step 4: Simplify right side
    544.89x = 410,418.84
  5. Step 5: Solve for x
    x = 410,418.84/544.89
  6. Step 6: Final answer
    x = 753.21

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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.