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Finding the Fourth Proportional to 672.64, 927.37 and 436.17

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Solution

The fourth proportional to 672.64, 927.37 and 436.17 is: 601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.64 : 927.37 = 436.17 : x
  2. Step 2: Convert to fraction form
    672.64/927.37 = 436.17/x
  3. Step 3: Cross multiply
    672.64x = 927.37 × 436.17
  4. Step 4: Simplify right side
    672.64x = 404,490.97
  5. Step 5: Solve for x
    x = 404,490.97/672.64
  6. Step 6: Final answer
    x = 601.35

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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.