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Finding the Third Proportional to 403.73 and 623.88

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Solution

The third proportional to 403.73 and 623.88 is: 964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.73 : 623.88 = 623.88 : x
  2. Step 2: Convert to fraction form
    403.73/623.88 = 623.88/x
  3. Step 3: Cross multiply
    403.73x = 623.88 × 623.88
  4. Step 4: Simplify right side
    403.73x = 389,229.76
  5. Step 5: Solve for x
    x = 389,229.76/403.73
  6. Step 6: Final answer
    x = 964.07

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.