Home / 667,662.35-1,001,534.22-218,430.68

Finding the Fourth Proportional to 667,662.35, 1,001,534.22 and 218,430.68

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Solution

The fourth proportional to 667,662.35, 1,001,534.22 and 218,430.68 is: 327,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,662.35 : 1,001,534.22 = 218,430.68 : x
  2. Step 2: Convert to fraction form
    667,662.35/1,001,534.22 = 218,430.68/x
  3. Step 3: Cross multiply
    667,662.35x = 1,001,534.22 × 218,430.68
  4. Step 4: Simplify right side
    667,662.35x = 218,765,795,710.20
  5. Step 5: Solve for x
    x = 218,765,795,710.20/667,662.35
  6. Step 6: Final answer
    x = 327,659.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.