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Finding the Third Proportional to 645,427.50 and 1,399,719

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Solution

The third proportional to 645,427.50 and 1,399,719 is: 3,035,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,427.50 : 1,399,719 = 1,399,719 : x
  2. Step 2: Convert to fraction form
    645,427.50/1,399,719 = 1,399,719/x
  3. Step 3: Cross multiply
    645,427.50x = 1,399,719 × 1,399,719
  4. Step 4: Simplify right side
    645,427.50x = 1,959,213,278,961
  5. Step 5: Solve for x
    x = 1,959,213,278,961/645,427.50
  6. Step 6: Final answer
    x = 3,035,528.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.