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Finding the Fourth Proportional to 544.69, 751.82 and 489.34

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Solution

The fourth proportional to 544.69, 751.82 and 489.34 is: 675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.69 : 751.82 = 489.34 : x
  2. Step 2: Convert to fraction form
    544.69/751.82 = 489.34/x
  3. Step 3: Cross multiply
    544.69x = 751.82 × 489.34
  4. Step 4: Simplify right side
    544.69x = 367,895.60
  5. Step 5: Solve for x
    x = 367,895.60/544.69
  6. Step 6: Final answer
    x = 675.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.