Home / 1,231,169.34-1,699,099.26-687,412.02

Finding the Fourth Proportional to 1,231,169.34, 1,699,099.26 and 687,412.02

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Solution

The fourth proportional to 1,231,169.34, 1,699,099.26 and 687,412.02 is: 948,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,169.34 : 1,699,099.26 = 687,412.02 : x
  2. Step 2: Convert to fraction form
    1,231,169.34/1,699,099.26 = 687,412.02/x
  3. Step 3: Cross multiply
    1,231,169.34x = 1,699,099.26 × 687,412.02
  4. Step 4: Simplify right side
    1,231,169.34x = 1,167,981,254,497.11
  5. Step 5: Solve for x
    x = 1,167,981,254,497.11/1,231,169.34
  6. Step 6: Final answer
    x = 948,676.37

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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.