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Finding the Fourth Proportional to 544.30, 810.54 and 531.54

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Solution

The fourth proportional to 544.30, 810.54 and 531.54 is: 791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.30 : 810.54 = 531.54 : x
  2. Step 2: Convert to fraction form
    544.30/810.54 = 531.54/x
  3. Step 3: Cross multiply
    544.30x = 810.54 × 531.54
  4. Step 4: Simplify right side
    544.30x = 430,834.43
  5. Step 5: Solve for x
    x = 430,834.43/544.30
  6. Step 6: Final answer
    x = 791.54

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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.