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Finding the Fourth Proportional to 577.28, 796.65 and 328.59

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Solution

The fourth proportional to 577.28, 796.65 and 328.59 is: 453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.28 : 796.65 = 328.59 : x
  2. Step 2: Convert to fraction form
    577.28/796.65 = 328.59/x
  3. Step 3: Cross multiply
    577.28x = 796.65 × 328.59
  4. Step 4: Simplify right side
    577.28x = 261,771.22
  5. Step 5: Solve for x
    x = 261,771.22/577.28
  6. Step 6: Final answer
    x = 453.45

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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.