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Finding the Third Proportional to 637,319 and 1,387,030

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Solution

The third proportional to 637,319 and 1,387,030 is: 3,018,664.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,319 : 1,387,030 = 1,387,030 : x
  2. Step 2: Convert to fraction form
    637,319/1,387,030 = 1,387,030/x
  3. Step 3: Cross multiply
    637,319x = 1,387,030 × 1,387,030
  4. Step 4: Simplify right side
    637,319x = 1,923,852,220,900
  5. Step 5: Solve for x
    x = 1,923,852,220,900/637,319
  6. Step 6: Final answer
    x = 3,018,664.47

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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.