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Finding the Third Proportional to 340,832 and 716,920

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Solution

The third proportional to 340,832 and 716,920 is: 1,507,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,832 : 716,920 = 716,920 : x
  2. Step 2: Convert to fraction form
    340,832/716,920 = 716,920/x
  3. Step 3: Cross multiply
    340,832x = 716,920 × 716,920
  4. Step 4: Simplify right side
    340,832x = 513,974,286,400
  5. Step 5: Solve for x
    x = 513,974,286,400/340,832
  6. Step 6: Final answer
    x = 1,507,998.92

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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.