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Finding the Fourth Proportional to 544.30, 815.26 and 453.42

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Solution

The fourth proportional to 544.30, 815.26 and 453.42 is: 679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.30 : 815.26 = 453.42 : x
  2. Step 2: Convert to fraction form
    544.30/815.26 = 453.42/x
  3. Step 3: Cross multiply
    544.30x = 815.26 × 453.42
  4. Step 4: Simplify right side
    544.30x = 369,655.19
  5. Step 5: Solve for x
    x = 369,655.19/544.30
  6. Step 6: Final answer
    x = 679.14

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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.