Home / 667,667.44-1,001,562.81-218,390.86

Finding the Fourth Proportional to 667,667.44, 1,001,562.81 and 218,390.86

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Solution

The fourth proportional to 667,667.44, 1,001,562.81 and 218,390.86 is: 327,606.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,667.44 : 1,001,562.81 = 218,390.86 : x
  2. Step 2: Convert to fraction form
    667,667.44/1,001,562.81 = 218,390.86/x
  3. Step 3: Cross multiply
    667,667.44x = 1,001,562.81 × 218,390.86
  4. Step 4: Simplify right side
    667,667.44x = 218,732,163,419.92
  5. Step 5: Solve for x
    x = 218,732,163,419.92/667,667.44
  6. Step 6: Final answer
    x = 327,606.46

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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.