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Finding the Third Proportional to 321,036 and 476,930

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Solution

The third proportional to 321,036 and 476,930 is: 708,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,036 : 476,930 = 476,930 : x
  2. Step 2: Convert to fraction form
    321,036/476,930 = 476,930/x
  3. Step 3: Cross multiply
    321,036x = 476,930 × 476,930
  4. Step 4: Simplify right side
    321,036x = 227,462,224,900
  5. Step 5: Solve for x
    x = 227,462,224,900/321,036
  6. Step 6: Final answer
    x = 708,525.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.