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Finding the Fourth Proportional to 633.69, 945.98 and 540.75

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Solution

The fourth proportional to 633.69, 945.98 and 540.75 is: 807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.69 : 945.98 = 540.75 : x
  2. Step 2: Convert to fraction form
    633.69/945.98 = 540.75/x
  3. Step 3: Cross multiply
    633.69x = 945.98 × 540.75
  4. Step 4: Simplify right side
    633.69x = 511,536.49
  5. Step 5: Solve for x
    x = 511,536.49/633.69
  6. Step 6: Final answer
    x = 807.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.