Home / 1,072,137.92-1,606,960.65-397,789.09

Finding the Fourth Proportional to 1,072,137.92, 1,606,960.65 and 397,789.09

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Solution

The fourth proportional to 1,072,137.92, 1,606,960.65 and 397,789.09 is: 596,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,137.92 : 1,606,960.65 = 397,789.09 : x
  2. Step 2: Convert to fraction form
    1,072,137.92/1,606,960.65 = 397,789.09/x
  3. Step 3: Cross multiply
    1,072,137.92x = 1,606,960.65 × 397,789.09
  4. Step 4: Simplify right side
    1,072,137.92x = 639,231,404,605.56
  5. Step 5: Solve for x
    x = 639,231,404,605.56/1,072,137.92
  6. Step 6: Final answer
    x = 596,221.25

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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.