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Finding the Fourth Proportional to 737.72, 1,104.81 and 606.80

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Solution

The fourth proportional to 737.72, 1,104.81 and 606.80 is: 908.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.72 : 1,104.81 = 606.80 : x
  2. Step 2: Convert to fraction form
    737.72/1,104.81 = 606.80/x
  3. Step 3: Cross multiply
    737.72x = 1,104.81 × 606.80
  4. Step 4: Simplify right side
    737.72x = 670,393.18
  5. Step 5: Solve for x
    x = 670,393.18/737.72
  6. Step 6: Final answer
    x = 908.74

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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.