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Finding the Fourth Proportional to 659.28, 908.26 and 459.75

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Solution

The fourth proportional to 659.28, 908.26 and 459.75 is: 633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.28 : 908.26 = 459.75 : x
  2. Step 2: Convert to fraction form
    659.28/908.26 = 459.75/x
  3. Step 3: Cross multiply
    659.28x = 908.26 × 459.75
  4. Step 4: Simplify right side
    659.28x = 417,570.98
  5. Step 5: Solve for x
    x = 417,570.98/659.28
  6. Step 6: Final answer
    x = 633.37

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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.