Home / 1,231,408.53-1,699,327.61-687,553.56

Finding the Fourth Proportional to 1,231,408.53, 1,699,327.61 and 687,553.56

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Solution

The fourth proportional to 1,231,408.53, 1,699,327.61 and 687,553.56 is: 948,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,408.53 : 1,699,327.61 = 687,553.56 : x
  2. Step 2: Convert to fraction form
    1,231,408.53/1,699,327.61 = 687,553.56/x
  3. Step 3: Cross multiply
    1,231,408.53x = 1,699,327.61 × 687,553.56
  4. Step 4: Simplify right side
    1,231,408.53x = 1,168,378,744,424.02
  5. Step 5: Solve for x
    x = 1,168,378,744,424.02/1,231,408.53
  6. Step 6: Final answer
    x = 948,814.89

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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.