Home / 818,814.87-1,228,052.88-219,633.57

Finding the Fourth Proportional to 818,814.87, 1,228,052.88 and 219,633.57

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Solution

The fourth proportional to 818,814.87, 1,228,052.88 and 219,633.57 is: 329,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,814.87 : 1,228,052.88 = 219,633.57 : x
  2. Step 2: Convert to fraction form
    818,814.87/1,228,052.88 = 219,633.57/x
  3. Step 3: Cross multiply
    818,814.87x = 1,228,052.88 × 219,633.57
  4. Step 4: Simplify right side
    818,814.87x = 269,721,638,183.18
  5. Step 5: Solve for x
    x = 269,721,638,183.18/818,814.87
  6. Step 6: Final answer
    x = 329,404.91

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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.