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Finding the Fourth Proportional to 604.08, 905.16 and 448.72

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Solution

The fourth proportional to 604.08, 905.16 and 448.72 is: 672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.08 : 905.16 = 448.72 : x
  2. Step 2: Convert to fraction form
    604.08/905.16 = 448.72/x
  3. Step 3: Cross multiply
    604.08x = 905.16 × 448.72
  4. Step 4: Simplify right side
    604.08x = 406,163.40
  5. Step 5: Solve for x
    x = 406,163.40/604.08
  6. Step 6: Final answer
    x = 672.37

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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.