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Finding the Third Proportional to 637,483 and 1,387,121

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Solution

The third proportional to 637,483 and 1,387,121 is: 3,018,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,483 : 1,387,121 = 1,387,121 : x
  2. Step 2: Convert to fraction form
    637,483/1,387,121 = 1,387,121/x
  3. Step 3: Cross multiply
    637,483x = 1,387,121 × 1,387,121
  4. Step 4: Simplify right side
    637,483x = 1,924,104,668,641
  5. Step 5: Solve for x
    x = 1,924,104,668,641/637,483
  6. Step 6: Final answer
    x = 3,018,283.89

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.