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Finding the Third Proportional to 866,370 and 1,299,555

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Solution

The third proportional to 866,370 and 1,299,555 is: 1,949,332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,370 : 1,299,555 = 1,299,555 : x
  2. Step 2: Convert to fraction form
    866,370/1,299,555 = 1,299,555/x
  3. Step 3: Cross multiply
    866,370x = 1,299,555 × 1,299,555
  4. Step 4: Simplify right side
    866,370x = 1,688,843,198,025
  5. Step 5: Solve for x
    x = 1,688,843,198,025/866,370
  6. Step 6: Final answer
    x = 1,949,332.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.