Home / 870,394.68-1,305,600.66-263,187.90

Finding the Fourth Proportional to 870,394.68, 1,305,600.66 and 263,187.90

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Solution

The fourth proportional to 870,394.68, 1,305,600.66 and 263,187.90 is: 394,784.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,394.68 : 1,305,600.66 = 263,187.90 : x
  2. Step 2: Convert to fraction form
    870,394.68/1,305,600.66 = 263,187.90/x
  3. Step 3: Cross multiply
    870,394.68x = 1,305,600.66 × 263,187.90
  4. Step 4: Simplify right side
    870,394.68x = 343,618,295,944.01
  5. Step 5: Solve for x
    x = 343,618,295,944.01/870,394.68
  6. Step 6: Final answer
    x = 394,784.46

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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.