Home / 420,910.35-580,834.62-229,886.85

Finding the Fourth Proportional to 420,910.35, 580,834.62 and 229,886.85

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Solution

The fourth proportional to 420,910.35, 580,834.62 and 229,886.85 is: 317,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,910.35 : 580,834.62 = 229,886.85 : x
  2. Step 2: Convert to fraction form
    420,910.35/580,834.62 = 229,886.85/x
  3. Step 3: Cross multiply
    420,910.35x = 580,834.62 × 229,886.85
  4. Step 4: Simplify right side
    420,910.35x = 133,526,241,162.75
  5. Step 5: Solve for x
    x = 133,526,241,162.75/420,910.35
  6. Step 6: Final answer
    x = 317,232.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.