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Finding the Fourth Proportional to 737.40, 1,016.89 and 488.46

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Solution

The fourth proportional to 737.40, 1,016.89 and 488.46 is: 673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.40 : 1,016.89 = 488.46 : x
  2. Step 2: Convert to fraction form
    737.40/1,016.89 = 488.46/x
  3. Step 3: Cross multiply
    737.40x = 1,016.89 × 488.46
  4. Step 4: Simplify right side
    737.40x = 496,712.68
  5. Step 5: Solve for x
    x = 496,712.68/737.40
  6. Step 6: Final answer
    x = 673.60

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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.