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Finding the Fourth Proportional to 528.39, 791.33 and 450.93

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Solution

The fourth proportional to 528.39, 791.33 and 450.93 is: 675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.39 : 791.33 = 450.93 : x
  2. Step 2: Convert to fraction form
    528.39/791.33 = 450.93/x
  3. Step 3: Cross multiply
    528.39x = 791.33 × 450.93
  4. Step 4: Simplify right side
    528.39x = 356,832.18
  5. Step 5: Solve for x
    x = 356,832.18/528.39
  6. Step 6: Final answer
    x = 675.32

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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.