Home / 818,835-1,228,082.94-219,653.70

Finding the Fourth Proportional to 818,835, 1,228,082.94 and 219,653.70

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Solution

The fourth proportional to 818,835, 1,228,082.94 and 219,653.70 is: 329,435.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,835 : 1,228,082.94 = 219,653.70 : x
  2. Step 2: Convert to fraction form
    818,835/1,228,082.94 = 219,653.70/x
  3. Step 3: Cross multiply
    818,835x = 1,228,082.94 × 219,653.70
  4. Step 4: Simplify right side
    818,835x = 269,752,961,677.88
  5. Step 5: Solve for x
    x = 269,752,961,677.88/818,835
  6. Step 6: Final answer
    x = 329,435.07

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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.