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Finding the Third Proportional to 552,690 and 810,900

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Solution

The third proportional to 552,690 and 810,900 is: 1,189,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,690 : 810,900 = 810,900 : x
  2. Step 2: Convert to fraction form
    552,690/810,900 = 810,900/x
  3. Step 3: Cross multiply
    552,690x = 810,900 × 810,900
  4. Step 4: Simplify right side
    552,690x = 657,558,810,000
  5. Step 5: Solve for x
    x = 657,558,810,000/552,690
  6. Step 6: Final answer
    x = 1,189,742.55

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.