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Finding the Fourth Proportional to 648.54, 894.27 and 482.22

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Solution

The fourth proportional to 648.54, 894.27 and 482.22 is: 664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.54 : 894.27 = 482.22 : x
  2. Step 2: Convert to fraction form
    648.54/894.27 = 482.22/x
  3. Step 3: Cross multiply
    648.54x = 894.27 × 482.22
  4. Step 4: Simplify right side
    648.54x = 431,234.88
  5. Step 5: Solve for x
    x = 431,234.88/648.54
  6. Step 6: Final answer
    x = 664.93

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Double scale
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1.5x scale

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.