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Finding the Third Proportional to 403,922 and 849,628

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Solution

The third proportional to 403,922 and 849,628 is: 1,787,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,922 : 849,628 = 849,628 : x
  2. Step 2: Convert to fraction form
    403,922/849,628 = 849,628/x
  3. Step 3: Cross multiply
    403,922x = 849,628 × 849,628
  4. Step 4: Simplify right side
    403,922x = 721,867,738,384
  5. Step 5: Solve for x
    x = 721,867,738,384/403,922
  6. Step 6: Final answer
    x = 1,787,146.38

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.