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Finding the Third Proportional to 620,889 and 1,363,700

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Solution

The third proportional to 620,889 and 1,363,700 is: 2,995,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,889 : 1,363,700 = 1,363,700 : x
  2. Step 2: Convert to fraction form
    620,889/1,363,700 = 1,363,700/x
  3. Step 3: Cross multiply
    620,889x = 1,363,700 × 1,363,700
  4. Step 4: Simplify right side
    620,889x = 1,859,677,690,000
  5. Step 5: Solve for x
    x = 1,859,677,690,000/620,889
  6. Step 6: Final answer
    x = 2,995,185.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.