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Finding the Fourth Proportional to 472.23, 650.43 and 406.62

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Solution

The fourth proportional to 472.23, 650.43 and 406.62 is: 560.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.23 : 650.43 = 406.62 : x
  2. Step 2: Convert to fraction form
    472.23/650.43 = 406.62/x
  3. Step 3: Cross multiply
    472.23x = 650.43 × 406.62
  4. Step 4: Simplify right side
    472.23x = 264,477.85
  5. Step 5: Solve for x
    x = 264,477.85/472.23
  6. Step 6: Final answer
    x = 560.06

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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.