Home / 1,311,267.39-1,967,167.12-412,500.09

Finding the Fourth Proportional to 1,311,267.39, 1,967,167.12 and 412,500.09

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Solution

The fourth proportional to 1,311,267.39, 1,967,167.12 and 412,500.09 is: 618,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,267.39 : 1,967,167.12 = 412,500.09 : x
  2. Step 2: Convert to fraction form
    1,311,267.39/1,967,167.12 = 412,500.09/x
  3. Step 3: Cross multiply
    1,311,267.39x = 1,967,167.12 × 412,500.09
  4. Step 4: Simplify right side
    1,311,267.39x = 811,456,614,045.04
  5. Step 5: Solve for x
    x = 811,456,614,045.04/1,311,267.39
  6. Step 6: Final answer
    x = 618,833.82

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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.