Home / 667,390.30-1,001,194.53-217,980.70

Finding the Fourth Proportional to 667,390.30, 1,001,194.53 and 217,980.70

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Solution

The fourth proportional to 667,390.30, 1,001,194.53 and 217,980.70 is: 327,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,390.30 : 1,001,194.53 = 217,980.70 : x
  2. Step 2: Convert to fraction form
    667,390.30/1,001,194.53 = 217,980.70/x
  3. Step 3: Cross multiply
    667,390.30x = 1,001,194.53 × 217,980.70
  4. Step 4: Simplify right side
    667,390.30x = 218,241,084,485.57
  5. Step 5: Solve for x
    x = 218,241,084,485.57/667,390.30
  6. Step 6: Final answer
    x = 327,006.68

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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.