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Finding the Third Proportional to 718,643 and 1,564,782

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Solution

The third proportional to 718,643 and 1,564,782 is: 3,407,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,643 : 1,564,782 = 1,564,782 : x
  2. Step 2: Convert to fraction form
    718,643/1,564,782 = 1,564,782/x
  3. Step 3: Cross multiply
    718,643x = 1,564,782 × 1,564,782
  4. Step 4: Simplify right side
    718,643x = 2,448,542,707,524
  5. Step 5: Solve for x
    x = 2,448,542,707,524/718,643
  6. Step 6: Final answer
    x = 3,407,175.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.