Home / 1,231,635.71-1,699,653.94-687,767.09

Finding the Fourth Proportional to 1,231,635.71, 1,699,653.94 and 687,767.09

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Solution

The fourth proportional to 1,231,635.71, 1,699,653.94 and 687,767.09 is: 949,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,635.71 : 1,699,653.94 = 687,767.09 : x
  2. Step 2: Convert to fraction form
    1,231,635.71/1,699,653.94 = 687,767.09/x
  3. Step 3: Cross multiply
    1,231,635.71x = 1,699,653.94 × 687,767.09
  4. Step 4: Simplify right side
    1,231,635.71x = 1,168,966,034,103.15
  5. Step 5: Solve for x
    x = 1,168,966,034,103.15/1,231,635.71
  6. Step 6: Final answer
    x = 949,116.71

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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.