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Finding the Third Proportional to 663,434 and 999,930

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Solution

The third proportional to 663,434 and 999,930 is: 1,507,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,434 : 999,930 = 999,930 : x
  2. Step 2: Convert to fraction form
    663,434/999,930 = 999,930/x
  3. Step 3: Cross multiply
    663,434x = 999,930 × 999,930
  4. Step 4: Simplify right side
    663,434x = 999,860,004,900
  5. Step 5: Solve for x
    x = 999,860,004,900/663,434
  6. Step 6: Final answer
    x = 1,507,097.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.