Home / 667,666.85-1,001,540.97-218,435.18

Finding the Fourth Proportional to 667,666.85, 1,001,540.97 and 218,435.18

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Solution

The fourth proportional to 667,666.85, 1,001,540.97 and 218,435.18 is: 327,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,666.85 : 1,001,540.97 = 218,435.18 : x
  2. Step 2: Convert to fraction form
    667,666.85/1,001,540.97 = 218,435.18/x
  3. Step 3: Cross multiply
    667,666.85x = 1,001,540.97 × 218,435.18
  4. Step 4: Simplify right side
    667,666.85x = 218,771,777,051.62
  5. Step 5: Solve for x
    x = 218,771,777,051.62/667,666.85
  6. Step 6: Final answer
    x = 327,666.08

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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.