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Finding the Fourth Proportional to 623.43, 935.34 and 441.18

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Solution

The fourth proportional to 623.43, 935.34 and 441.18 is: 661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.43 : 935.34 = 441.18 : x
  2. Step 2: Convert to fraction form
    623.43/935.34 = 441.18/x
  3. Step 3: Cross multiply
    623.43x = 935.34 × 441.18
  4. Step 4: Simplify right side
    623.43x = 412,653.30
  5. Step 5: Solve for x
    x = 412,653.30/623.43
  6. Step 6: Final answer
    x = 661.91

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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.