Home / 851,845.10-1,277,617.78-311,989.82

Finding the Fourth Proportional to 851,845.10, 1,277,617.78 and 311,989.82

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Solution

The fourth proportional to 851,845.10, 1,277,617.78 and 311,989.82 is: 467,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,845.10 : 1,277,617.78 = 311,989.82 : x
  2. Step 2: Convert to fraction form
    851,845.10/1,277,617.78 = 311,989.82/x
  3. Step 3: Cross multiply
    851,845.10x = 1,277,617.78 × 311,989.82
  4. Step 4: Simplify right side
    851,845.10x = 398,603,741,211.00
  5. Step 5: Solve for x
    x = 398,603,741,211.00/851,845.10
  6. Step 6: Final answer
    x = 467,929.84

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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.