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Finding the Third Proportional to 699,281.44 and 987,030.38

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Solution

The third proportional to 699,281.44 and 987,030.38 is: 1,393,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,281.44 : 987,030.38 = 987,030.38 : x
  2. Step 2: Convert to fraction form
    699,281.44/987,030.38 = 987,030.38/x
  3. Step 3: Cross multiply
    699,281.44x = 987,030.38 × 987,030.38
  4. Step 4: Simplify right side
    699,281.44x = 974,228,961,172.64
  5. Step 5: Solve for x
    x = 974,228,961,172.64/699,281.44
  6. Step 6: Final answer
    x = 1,393,185.79

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.