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Finding the Third Proportional to 630,622 and 979,152

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Solution

The third proportional to 630,622 and 979,152 is: 1,520,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,622 : 979,152 = 979,152 : x
  2. Step 2: Convert to fraction form
    630,622/979,152 = 979,152/x
  3. Step 3: Cross multiply
    630,622x = 979,152 × 979,152
  4. Step 4: Simplify right side
    630,622x = 958,738,639,104
  5. Step 5: Solve for x
    x = 958,738,639,104/630,622
  6. Step 6: Final answer
    x = 1,520,306.36

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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.