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Finding the Third Proportional to 679,286.25 and 1,439,491.50

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Solution

The third proportional to 679,286.25 and 1,439,491.50 is: 3,050,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,286.25 : 1,439,491.50 = 1,439,491.50 : x
  2. Step 2: Convert to fraction form
    679,286.25/1,439,491.50 = 1,439,491.50/x
  3. Step 3: Cross multiply
    679,286.25x = 1,439,491.50 × 1,439,491.50
  4. Step 4: Simplify right side
    679,286.25x = 2,072,135,778,572.25
  5. Step 5: Solve for x
    x = 2,072,135,778,572.25/679,286.25
  6. Step 6: Final answer
    x = 3,050,460.36

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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.