Home / 851,847.10-1,277,620.78-311,991.82

Finding the Fourth Proportional to 851,847.10, 1,277,620.78 and 311,991.82

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Solution

The fourth proportional to 851,847.10, 1,277,620.78 and 311,991.82 is: 467,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,847.10 : 1,277,620.78 = 311,991.82 : x
  2. Step 2: Convert to fraction form
    851,847.10/1,277,620.78 = 311,991.82/x
  3. Step 3: Cross multiply
    851,847.10x = 1,277,620.78 × 311,991.82
  4. Step 4: Simplify right side
    851,847.10x = 398,607,232,422.02
  5. Step 5: Solve for x
    x = 398,607,232,422.02/851,847.10
  6. Step 6: Final answer
    x = 467,932.84

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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.