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Finding the Fourth Proportional to 499.36, 745.49 and 444.68

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Solution

The fourth proportional to 499.36, 745.49 and 444.68 is: 663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.36 : 745.49 = 444.68 : x
  2. Step 2: Convert to fraction form
    499.36/745.49 = 444.68/x
  3. Step 3: Cross multiply
    499.36x = 745.49 × 444.68
  4. Step 4: Simplify right side
    499.36x = 331,504.49
  5. Step 5: Solve for x
    x = 331,504.49/499.36
  6. Step 6: Final answer
    x = 663.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.