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Finding the Third Proportional to 630,662 and 979,158

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Solution

The third proportional to 630,662 and 979,158 is: 1,520,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,662 : 979,158 = 979,158 : x
  2. Step 2: Convert to fraction form
    630,662/979,158 = 979,158/x
  3. Step 3: Cross multiply
    630,662x = 979,158 × 979,158
  4. Step 4: Simplify right side
    630,662x = 958,750,388,964
  5. Step 5: Solve for x
    x = 958,750,388,964/630,662
  6. Step 6: Final answer
    x = 1,520,228.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.