Home / 496,213.43-684,928.71-394,419.51

Finding the Fourth Proportional to 496,213.43, 684,928.71 and 394,419.51

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Solution

The fourth proportional to 496,213.43, 684,928.71 and 394,419.51 is: 544,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,213.43 : 684,928.71 = 394,419.51 : x
  2. Step 2: Convert to fraction form
    496,213.43/684,928.71 = 394,419.51/x
  3. Step 3: Cross multiply
    496,213.43x = 684,928.71 × 394,419.51
  4. Step 4: Simplify right side
    496,213.43x = 270,149,246,183.13
  5. Step 5: Solve for x
    x = 270,149,246,183.13/496,213.43
  6. Step 6: Final answer
    x = 544,421.48

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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.