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Finding the Fourth Proportional to 578.03, 866.90 and 395.37

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Solution

The fourth proportional to 578.03, 866.90 and 395.37 is: 592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.03 : 866.90 = 395.37 : x
  2. Step 2: Convert to fraction form
    578.03/866.90 = 395.37/x
  3. Step 3: Cross multiply
    578.03x = 866.90 × 395.37
  4. Step 4: Simplify right side
    578.03x = 342,747.24
  5. Step 5: Solve for x
    x = 342,747.24/578.03
  6. Step 6: Final answer
    x = 592.96

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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.