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Finding the Fourth Proportional to 544.28, 750.30 and 427.64

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Solution

The fourth proportional to 544.28, 750.30 and 427.64 is: 589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.28 : 750.30 = 427.64 : x
  2. Step 2: Convert to fraction form
    544.28/750.30 = 427.64/x
  3. Step 3: Cross multiply
    544.28x = 750.30 × 427.64
  4. Step 4: Simplify right side
    544.28x = 320,858.29
  5. Step 5: Solve for x
    x = 320,858.29/544.28
  6. Step 6: Final answer
    x = 589.51

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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.