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Finding the Third Proportional to 280,591.50 and 679,284.75

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Solution

The third proportional to 280,591.50 and 679,284.75 is: 1,644,482.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,591.50 : 679,284.75 = 679,284.75 : x
  2. Step 2: Convert to fraction form
    280,591.50/679,284.75 = 679,284.75/x
  3. Step 3: Cross multiply
    280,591.50x = 679,284.75 × 679,284.75
  4. Step 4: Simplify right side
    280,591.50x = 461,427,771,582.56
  5. Step 5: Solve for x
    x = 461,427,771,582.56/280,591.50
  6. Step 6: Final answer
    x = 1,644,482.36

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.