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Finding the Third Proportional to 631,057 and 1,388,324

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Solution

The third proportional to 631,057 and 1,388,324 is: 3,054,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,057 : 1,388,324 = 1,388,324 : x
  2. Step 2: Convert to fraction form
    631,057/1,388,324 = 1,388,324/x
  3. Step 3: Cross multiply
    631,057x = 1,388,324 × 1,388,324
  4. Step 4: Simplify right side
    631,057x = 1,927,443,528,976
  5. Step 5: Solve for x
    x = 1,927,443,528,976/631,057
  6. Step 6: Final answer
    x = 3,054,309.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.