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Finding the Fourth Proportional to 648.66, 976.81 and 467.33

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Solution

The fourth proportional to 648.66, 976.81 and 467.33 is: 703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.66 : 976.81 = 467.33 : x
  2. Step 2: Convert to fraction form
    648.66/976.81 = 467.33/x
  3. Step 3: Cross multiply
    648.66x = 976.81 × 467.33
  4. Step 4: Simplify right side
    648.66x = 456,490.28
  5. Step 5: Solve for x
    x = 456,490.28/648.66
  6. Step 6: Final answer
    x = 703.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.