Home / 890,920.75-1,336,311.39-251,198.65

Finding the Fourth Proportional to 890,920.75, 1,336,311.39 and 251,198.65

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Solution

The fourth proportional to 890,920.75, 1,336,311.39 and 251,198.65 is: 376,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,920.75 : 1,336,311.39 = 251,198.65 : x
  2. Step 2: Convert to fraction form
    890,920.75/1,336,311.39 = 251,198.65/x
  3. Step 3: Cross multiply
    890,920.75x = 1,336,311.39 × 251,198.65
  4. Step 4: Simplify right side
    890,920.75x = 335,679,617,147.62
  5. Step 5: Solve for x
    x = 335,679,617,147.62/890,920.75
  6. Step 6: Final answer
    x = 376,778.31

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1.5x scale

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.