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Finding the Fourth Proportional to 1,067.49, 1,600.34 and 450.63

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Solution

The fourth proportional to 1,067.49, 1,600.34 and 450.63 is: 675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.49 : 1,600.34 = 450.63 : x
  2. Step 2: Convert to fraction form
    1,067.49/1,600.34 = 450.63/x
  3. Step 3: Cross multiply
    1,067.49x = 1,600.34 × 450.63
  4. Step 4: Simplify right side
    1,067.49x = 721,158.96
  5. Step 5: Solve for x
    x = 721,158.96/1,067.49
  6. Step 6: Final answer
    x = 675.57

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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.