Home / 1,387,290.92-2,081,103.12-488,546.91

Finding the Fourth Proportional to 1,387,290.92, 2,081,103.12 and 488,546.91

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Solution

The fourth proportional to 1,387,290.92, 2,081,103.12 and 488,546.91 is: 732,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,290.92 : 2,081,103.12 = 488,546.91 : x
  2. Step 2: Convert to fraction form
    1,387,290.92/2,081,103.12 = 488,546.91/x
  3. Step 3: Cross multiply
    1,387,290.92x = 2,081,103.12 × 488,546.91
  4. Step 4: Simplify right side
    1,387,290.92x = 1,016,716,498,667.36
  5. Step 5: Solve for x
    x = 1,016,716,498,667.36/1,387,290.92
  6. Step 6: Final answer
    x = 732,879.09

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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.