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Finding the Third Proportional to 689,372 and 1,034,787

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Solution

The third proportional to 689,372 and 1,034,787 is: 1,553,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,372 : 1,034,787 = 1,034,787 : x
  2. Step 2: Convert to fraction form
    689,372/1,034,787 = 1,034,787/x
  3. Step 3: Cross multiply
    689,372x = 1,034,787 × 1,034,787
  4. Step 4: Simplify right side
    689,372x = 1,070,784,135,369
  5. Step 5: Solve for x
    x = 1,070,784,135,369/689,372
  6. Step 6: Final answer
    x = 1,553,274.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.