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Finding the Fourth Proportional to 865.69, 1,297.32 and 593.53

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Solution

The fourth proportional to 865.69, 1,297.32 and 593.53 is: 889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    865.69 : 1,297.32 = 593.53 : x
  2. Step 2: Convert to fraction form
    865.69/1,297.32 = 593.53/x
  3. Step 3: Cross multiply
    865.69x = 1,297.32 × 593.53
  4. Step 4: Simplify right side
    865.69x = 769,992.87
  5. Step 5: Solve for x
    x = 769,992.87/865.69
  6. Step 6: Final answer
    x = 889.46

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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.