Home / 809,966.72-1,214,933.67-210,914.61

Finding the Fourth Proportional to 809,966.72, 1,214,933.67 and 210,914.61

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Solution

The fourth proportional to 809,966.72, 1,214,933.67 and 210,914.61 is: 316,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,966.72 : 1,214,933.67 = 210,914.61 : x
  2. Step 2: Convert to fraction form
    809,966.72/1,214,933.67 = 210,914.61/x
  3. Step 3: Cross multiply
    809,966.72x = 1,214,933.67 × 210,914.61
  4. Step 4: Simplify right side
    809,966.72x = 256,247,261,183.92
  5. Step 5: Solve for x
    x = 256,247,261,183.92/809,966.72
  6. Step 6: Final answer
    x = 316,367.64

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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.