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Finding the Fourth Proportional to 936.17, 1,404.27 and 448.68

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Solution

The fourth proportional to 936.17, 1,404.27 and 448.68 is: 673.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.17 : 1,404.27 = 448.68 : x
  2. Step 2: Convert to fraction form
    936.17/1,404.27 = 448.68/x
  3. Step 3: Cross multiply
    936.17x = 1,404.27 × 448.68
  4. Step 4: Simplify right side
    936.17x = 630,067.86
  5. Step 5: Solve for x
    x = 630,067.86/936.17
  6. Step 6: Final answer
    x = 673.03

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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.