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Finding the Fourth Proportional to 672.75, 927.99 and 436.32

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Solution

The fourth proportional to 672.75, 927.99 and 436.32 is: 601.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.75 : 927.99 = 436.32 : x
  2. Step 2: Convert to fraction form
    672.75/927.99 = 436.32/x
  3. Step 3: Cross multiply
    672.75x = 927.99 × 436.32
  4. Step 4: Simplify right side
    672.75x = 404,900.60
  5. Step 5: Solve for x
    x = 404,900.60/672.75
  6. Step 6: Final answer
    x = 601.86

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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.