Home / 811,922.70-1,217,884.05-251,013.90

Finding the Fourth Proportional to 811,922.70, 1,217,884.05 and 251,013.90

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Solution

The fourth proportional to 811,922.70, 1,217,884.05 and 251,013.90 is: 376,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,922.70 : 1,217,884.05 = 251,013.90 : x
  2. Step 2: Convert to fraction form
    811,922.70/1,217,884.05 = 251,013.90/x
  3. Step 3: Cross multiply
    811,922.70x = 1,217,884.05 × 251,013.90
  4. Step 4: Simplify right side
    811,922.70x = 305,705,825,138.30
  5. Step 5: Solve for x
    x = 305,705,825,138.30/811,922.70
  6. Step 6: Final answer
    x = 376,520.85

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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.