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Finding the Third Proportional to 673,776.75 and 990,960.38

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Solution

The third proportional to 673,776.75 and 990,960.38 is: 1,457,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,776.75 : 990,960.38 = 990,960.38 : x
  2. Step 2: Convert to fraction form
    673,776.75/990,960.38 = 990,960.38/x
  3. Step 3: Cross multiply
    673,776.75x = 990,960.38 × 990,960.38
  4. Step 4: Simplify right side
    673,776.75x = 982,002,464,820.14
  5. Step 5: Solve for x
    x = 982,002,464,820.14/673,776.75
  6. Step 6: Final answer
    x = 1,457,459.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.