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Finding the Third Proportional to 485,605.13 and 718,986.38

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Solution

The third proportional to 485,605.13 and 718,986.38 is: 1,064,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,605.13 : 718,986.38 = 718,986.38 : x
  2. Step 2: Convert to fraction form
    485,605.13/718,986.38 = 718,986.38/x
  3. Step 3: Cross multiply
    485,605.13x = 718,986.38 × 718,986.38
  4. Step 4: Simplify right side
    485,605.13x = 516,941,407,435.64
  5. Step 5: Solve for x
    x = 516,941,407,435.64/485,605.13
  6. Step 6: Final answer
    x = 1,064,530.38

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.