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Finding the Third Proportional to 976,539 and 2,139,265

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Solution

The third proportional to 976,539 and 2,139,265 is: 4,686,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,539 : 2,139,265 = 2,139,265 : x
  2. Step 2: Convert to fraction form
    976,539/2,139,265 = 2,139,265/x
  3. Step 3: Cross multiply
    976,539x = 2,139,265 × 2,139,265
  4. Step 4: Simplify right side
    976,539x = 4,576,454,740,225
  5. Step 5: Solve for x
    x = 4,576,454,740,225/976,539
  6. Step 6: Final answer
    x = 4,686,402.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.