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Finding the Third Proportional to 630,657 and 979,200

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Solution

The third proportional to 630,657 and 979,200 is: 1,520,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,657 : 979,200 = 979,200 : x
  2. Step 2: Convert to fraction form
    630,657/979,200 = 979,200/x
  3. Step 3: Cross multiply
    630,657x = 979,200 × 979,200
  4. Step 4: Simplify right side
    630,657x = 958,832,640,000
  5. Step 5: Solve for x
    x = 958,832,640,000/630,657
  6. Step 6: Final answer
    x = 1,520,371.04

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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.