Home / 667,663.10-1,001,535.35-218,431.43

Finding the Fourth Proportional to 667,663.10, 1,001,535.35 and 218,431.43

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Solution

The fourth proportional to 667,663.10, 1,001,535.35 and 218,431.43 is: 327,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,663.10 : 1,001,535.35 = 218,431.43 : x
  2. Step 2: Convert to fraction form
    667,663.10/1,001,535.35 = 218,431.43/x
  3. Step 3: Cross multiply
    667,663.10x = 1,001,535.35 × 218,431.43
  4. Step 4: Simplify right side
    667,663.10x = 218,766,792,596.22
  5. Step 5: Solve for x
    x = 218,766,792,596.22/667,663.10
  6. Step 6: Final answer
    x = 327,660.45

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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.