Home / 850,619.70-1,275,929.55-764,998.65

Finding the Fourth Proportional to 850,619.70, 1,275,929.55 and 764,998.65

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Solution

The fourth proportional to 850,619.70, 1,275,929.55 and 764,998.65 is: 1,147,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,619.70 : 1,275,929.55 = 764,998.65 : x
  2. Step 2: Convert to fraction form
    850,619.70/1,275,929.55 = 764,998.65/x
  3. Step 3: Cross multiply
    850,619.70x = 1,275,929.55 × 764,998.65
  4. Step 4: Simplify right side
    850,619.70x = 976,084,383,245.11
  5. Step 5: Solve for x
    x = 976,084,383,245.11/850,619.70
  6. Step 6: Final answer
    x = 1,147,497.98

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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.