Home / 667,387.05-1,001,189.66-217,977.45

Finding the Fourth Proportional to 667,387.05, 1,001,189.66 and 217,977.45

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Solution

The fourth proportional to 667,387.05, 1,001,189.66 and 217,977.45 is: 327,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,387.05 : 1,001,189.66 = 217,977.45 : x
  2. Step 2: Convert to fraction form
    667,387.05/1,001,189.66 = 217,977.45/x
  3. Step 3: Cross multiply
    667,387.05x = 1,001,189.66 × 217,977.45
  4. Step 4: Simplify right side
    667,387.05x = 218,236,767,963.28
  5. Step 5: Solve for x
    x = 218,236,767,963.28/667,387.05
  6. Step 6: Final answer
    x = 327,001.80

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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.