Home / 2,115,932.81-3,172,898.82-819,692.34

Finding the Fourth Proportional to 2,115,932.81, 3,172,898.82 and 819,692.34

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Solution

The fourth proportional to 2,115,932.81, 3,172,898.82 and 819,692.34 is: 1,229,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,932.81 : 3,172,898.82 = 819,692.34 : x
  2. Step 2: Convert to fraction form
    2,115,932.81/3,172,898.82 = 819,692.34/x
  3. Step 3: Cross multiply
    2,115,932.81x = 3,172,898.82 × 819,692.34
  4. Step 4: Simplify right side
    2,115,932.81x = 2,600,800,858,349.04
  5. Step 5: Solve for x
    x = 2,600,800,858,349.04/2,115,932.81
  6. Step 6: Final answer
    x = 1,229,150.97

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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.