Home / 1,231,446.96-1,699,501.86-687,687.80

Finding the Fourth Proportional to 1,231,446.96, 1,699,501.86 and 687,687.80

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Solution

The fourth proportional to 1,231,446.96, 1,699,501.86 and 687,687.80 is: 949,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,446.96 : 1,699,501.86 = 687,687.80 : x
  2. Step 2: Convert to fraction form
    1,231,446.96/1,699,501.86 = 687,687.80/x
  3. Step 3: Cross multiply
    1,231,446.96x = 1,699,501.86 × 687,687.80
  4. Step 4: Simplify right side
    1,231,446.96x = 1,168,726,695,199.31
  5. Step 5: Solve for x
    x = 1,168,726,695,199.31/1,231,446.96
  6. Step 6: Final answer
    x = 949,067.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.