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Finding the Fourth Proportional to 934.82, 1,289.79 and 602.97

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Solution

The fourth proportional to 934.82, 1,289.79 and 602.97 is: 831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.82 : 1,289.79 = 602.97 : x
  2. Step 2: Convert to fraction form
    934.82/1,289.79 = 602.97/x
  3. Step 3: Cross multiply
    934.82x = 1,289.79 × 602.97
  4. Step 4: Simplify right side
    934.82x = 777,704.68
  5. Step 5: Solve for x
    x = 777,704.68/934.82
  6. Step 6: Final answer
    x = 831.93

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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.