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Finding the Fourth Proportional to 495.54, 742.05 and 414.18

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Solution

The fourth proportional to 495.54, 742.05 and 414.18 is: 620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.54 : 742.05 = 414.18 : x
  2. Step 2: Convert to fraction form
    495.54/742.05 = 414.18/x
  3. Step 3: Cross multiply
    495.54x = 742.05 × 414.18
  4. Step 4: Simplify right side
    495.54x = 307,342.27
  5. Step 5: Solve for x
    x = 307,342.27/495.54
  6. Step 6: Final answer
    x = 620.22

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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.