Home / 1,205,781.23-1,809,027.09-485,752.38

Finding the Fourth Proportional to 1,205,781.23, 1,809,027.09 and 485,752.38

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Solution

The fourth proportional to 1,205,781.23, 1,809,027.09 and 485,752.38 is: 728,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,781.23 : 1,809,027.09 = 485,752.38 : x
  2. Step 2: Convert to fraction form
    1,205,781.23/1,809,027.09 = 485,752.38/x
  3. Step 3: Cross multiply
    1,205,781.23x = 1,809,027.09 × 485,752.38
  4. Step 4: Simplify right side
    1,205,781.23x = 878,739,214,451.97
  5. Step 5: Solve for x
    x = 878,739,214,451.97/1,205,781.23
  6. Step 6: Final answer
    x = 728,771.68

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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.