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Finding the Third Proportional to 403,622 and 624,930

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Solution

The third proportional to 403,622 and 624,930 is: 967,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,622 : 624,930 = 624,930 : x
  2. Step 2: Convert to fraction form
    403,622/624,930 = 624,930/x
  3. Step 3: Cross multiply
    403,622x = 624,930 × 624,930
  4. Step 4: Simplify right side
    403,622x = 390,537,504,900
  5. Step 5: Solve for x
    x = 390,537,504,900/403,622
  6. Step 6: Final answer
    x = 967,582.30

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Why These Related Problems?

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