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Finding the Fourth Proportional to 906.54, 1,360.23 and 444.79

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Solution

The fourth proportional to 906.54, 1,360.23 and 444.79 is: 667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    906.54 : 1,360.23 = 444.79 : x
  2. Step 2: Convert to fraction form
    906.54/1,360.23 = 444.79/x
  3. Step 3: Cross multiply
    906.54x = 1,360.23 × 444.79
  4. Step 4: Simplify right side
    906.54x = 605,016.70
  5. Step 5: Solve for x
    x = 605,016.70/906.54
  6. Step 6: Final answer
    x = 667.39

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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.