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Finding the Third Proportional to 470,396 and 709,916

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Solution

The third proportional to 470,396 and 709,916 is: 1,071,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,396 : 709,916 = 709,916 : x
  2. Step 2: Convert to fraction form
    470,396/709,916 = 709,916/x
  3. Step 3: Cross multiply
    470,396x = 709,916 × 709,916
  4. Step 4: Simplify right side
    470,396x = 503,980,727,056
  5. Step 5: Solve for x
    x = 503,980,727,056/470,396
  6. Step 6: Final answer
    x = 1,071,396.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.