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Finding the Fourth Proportional to 733.08, 1,009.83 and 679.92

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Solution

The fourth proportional to 733.08, 1,009.83 and 679.92 is: 936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.08 : 1,009.83 = 679.92 : x
  2. Step 2: Convert to fraction form
    733.08/1,009.83 = 679.92/x
  3. Step 3: Cross multiply
    733.08x = 1,009.83 × 679.92
  4. Step 4: Simplify right side
    733.08x = 686,603.61
  5. Step 5: Solve for x
    x = 686,603.61/733.08
  6. Step 6: Final answer
    x = 936.60

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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.