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Finding the Third Proportional to 870,966 and 1,368,657

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Solution

The third proportional to 870,966 and 1,368,657 is: 2,150,740.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,966 : 1,368,657 = 1,368,657 : x
  2. Step 2: Convert to fraction form
    870,966/1,368,657 = 1,368,657/x
  3. Step 3: Cross multiply
    870,966x = 1,368,657 × 1,368,657
  4. Step 4: Simplify right side
    870,966x = 1,873,221,983,649
  5. Step 5: Solve for x
    x = 1,873,221,983,649/870,966
  6. Step 6: Final answer
    x = 2,150,740.65

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.