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Finding the Third Proportional to 645,426.75 and 1,399,717.50

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Solution

The third proportional to 645,426.75 and 1,399,717.50 is: 3,035,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,426.75 : 1,399,717.50 = 1,399,717.50 : x
  2. Step 2: Convert to fraction form
    645,426.75/1,399,717.50 = 1,399,717.50/x
  3. Step 3: Cross multiply
    645,426.75x = 1,399,717.50 × 1,399,717.50
  4. Step 4: Simplify right side
    645,426.75x = 1,959,209,079,806.25
  5. Step 5: Solve for x
    x = 1,959,209,079,806.25/645,426.75
  6. Step 6: Final answer
    x = 3,035,525.07

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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.