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Finding the Fourth Proportional to 544.52, 815.19 and 406.31

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Solution

The fourth proportional to 544.52, 815.19 and 406.31 is: 608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.52 : 815.19 = 406.31 : x
  2. Step 2: Convert to fraction form
    544.52/815.19 = 406.31/x
  3. Step 3: Cross multiply
    544.52x = 815.19 × 406.31
  4. Step 4: Simplify right side
    544.52x = 331,215.77
  5. Step 5: Solve for x
    x = 331,215.77/544.52
  6. Step 6: Final answer
    x = 608.28

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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.