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Finding the Third Proportional to 430,660 and 661,055

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Solution

The third proportional to 430,660 and 661,055 is: 1,014,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,660 : 661,055 = 661,055 : x
  2. Step 2: Convert to fraction form
    430,660/661,055 = 661,055/x
  3. Step 3: Cross multiply
    430,660x = 661,055 × 661,055
  4. Step 4: Simplify right side
    430,660x = 436,993,713,025
  5. Step 5: Solve for x
    x = 436,993,713,025/430,660
  6. Step 6: Final answer
    x = 1,014,706.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.