Home / 792,140.80-1,188,211.20-259,715.65

Finding the Fourth Proportional to 792,140.80, 1,188,211.20 and 259,715.65

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Solution

The fourth proportional to 792,140.80, 1,188,211.20 and 259,715.65 is: 389,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,140.80 : 1,188,211.20 = 259,715.65 : x
  2. Step 2: Convert to fraction form
    792,140.80/1,188,211.20 = 259,715.65/x
  3. Step 3: Cross multiply
    792,140.80x = 1,188,211.20 × 259,715.65
  4. Step 4: Simplify right side
    792,140.80x = 308,597,044,145.28
  5. Step 5: Solve for x
    x = 308,597,044,145.28/792,140.80
  6. Step 6: Final answer
    x = 389,573.48

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Double scale
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Similar ratio
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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.