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Finding the Third Proportional to 679,070 and 1,439,089

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Solution

The third proportional to 679,070 and 1,439,089 is: 3,049,725.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,070 : 1,439,089 = 1,439,089 : x
  2. Step 2: Convert to fraction form
    679,070/1,439,089 = 1,439,089/x
  3. Step 3: Cross multiply
    679,070x = 1,439,089 × 1,439,089
  4. Step 4: Simplify right side
    679,070x = 2,070,977,149,921
  5. Step 5: Solve for x
    x = 2,070,977,149,921/679,070
  6. Step 6: Final answer
    x = 3,049,725.58

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.