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Finding the Third Proportional to 309,670 and 452,555

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Solution

The third proportional to 309,670 and 452,555 is: 661,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,670 : 452,555 = 452,555 : x
  2. Step 2: Convert to fraction form
    309,670/452,555 = 452,555/x
  3. Step 3: Cross multiply
    309,670x = 452,555 × 452,555
  4. Step 4: Simplify right side
    309,670x = 204,806,028,025
  5. Step 5: Solve for x
    x = 204,806,028,025/309,670
  6. Step 6: Final answer
    x = 661,368.64

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.