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Finding the Third Proportional to 630,626 and 1,401,220

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Solution

The third proportional to 630,626 and 1,401,220 is: 3,113,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,626 : 1,401,220 = 1,401,220 : x
  2. Step 2: Convert to fraction form
    630,626/1,401,220 = 1,401,220/x
  3. Step 3: Cross multiply
    630,626x = 1,401,220 × 1,401,220
  4. Step 4: Simplify right side
    630,626x = 1,963,417,488,400
  5. Step 5: Solve for x
    x = 1,963,417,488,400/630,626
  6. Step 6: Final answer
    x = 3,113,442.02

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.