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Finding the Fourth Proportional to 993.00, 1,370.41 and 573.43

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Solution

The fourth proportional to 993.00, 1,370.41 and 573.43 is: 791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.00 : 1,370.41 = 573.43 : x
  2. Step 2: Convert to fraction form
    993.00/1,370.41 = 573.43/x
  3. Step 3: Cross multiply
    993.00x = 1,370.41 × 573.43
  4. Step 4: Simplify right side
    993.00x = 785,833.05
  5. Step 5: Solve for x
    x = 785,833.05/993.00
  6. Step 6: Final answer
    x = 791.37

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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.