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Finding the Third Proportional to 718,550 and 999,075

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Solution

The third proportional to 718,550 and 999,075 is: 1,389,118.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,550 : 999,075 = 999,075 : x
  2. Step 2: Convert to fraction form
    718,550/999,075 = 999,075/x
  3. Step 3: Cross multiply
    718,550x = 999,075 × 999,075
  4. Step 4: Simplify right side
    718,550x = 998,150,855,625
  5. Step 5: Solve for x
    x = 998,150,855,625/718,550
  6. Step 6: Final answer
    x = 1,389,118.16

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.