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Finding the Fourth Proportional to 1,067.93, 1,473.51 and 648.50

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Solution

The fourth proportional to 1,067.93, 1,473.51 and 648.50 is: 894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.93 : 1,473.51 = 648.50 : x
  2. Step 2: Convert to fraction form
    1,067.93/1,473.51 = 648.50/x
  3. Step 3: Cross multiply
    1,067.93x = 1,473.51 × 648.50
  4. Step 4: Simplify right side
    1,067.93x = 955,563.87
  5. Step 5: Solve for x
    x = 955,563.87/1,067.93
  6. Step 6: Final answer
    x = 894.79

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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.