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Finding the Fourth Proportional to 592.72, 889.55 and 411.39

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Solution

The fourth proportional to 592.72, 889.55 and 411.39 is: 617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.72 : 889.55 = 411.39 : x
  2. Step 2: Convert to fraction form
    592.72/889.55 = 411.39/x
  3. Step 3: Cross multiply
    592.72x = 889.55 × 411.39
  4. Step 4: Simplify right side
    592.72x = 365,949.92
  5. Step 5: Solve for x
    x = 365,949.92/592.72
  6. Step 6: Final answer
    x = 617.41

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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.