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Finding the Third Proportional to 630,438 and 1,400,844

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Solution

The third proportional to 630,438 and 1,400,844 is: 3,112,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,438 : 1,400,844 = 1,400,844 : x
  2. Step 2: Convert to fraction form
    630,438/1,400,844 = 1,400,844/x
  3. Step 3: Cross multiply
    630,438x = 1,400,844 × 1,400,844
  4. Step 4: Simplify right side
    630,438x = 1,962,363,912,336
  5. Step 5: Solve for x
    x = 1,962,363,912,336/630,438
  6. Step 6: Final answer
    x = 3,112,699.29

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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.