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Finding the Third Proportional to 403,710 and 849,243

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Solution

The third proportional to 403,710 and 849,243 is: 1,786,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,710 : 849,243 = 849,243 : x
  2. Step 2: Convert to fraction form
    403,710/849,243 = 849,243/x
  3. Step 3: Cross multiply
    403,710x = 849,243 × 849,243
  4. Step 4: Simplify right side
    403,710x = 721,213,673,049
  5. Step 5: Solve for x
    x = 721,213,673,049/403,710
  6. Step 6: Final answer
    x = 1,786,464.72

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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.