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Finding the Third Proportional to 631,212 and 887,842

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Solution

The third proportional to 631,212 and 887,842 is: 1,248,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,212 : 887,842 = 887,842 : x
  2. Step 2: Convert to fraction form
    631,212/887,842 = 887,842/x
  3. Step 3: Cross multiply
    631,212x = 887,842 × 887,842
  4. Step 4: Simplify right side
    631,212x = 788,263,416,964
  5. Step 5: Solve for x
    x = 788,263,416,964/631,212
  6. Step 6: Final answer
    x = 1,248,809.30

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.