Home / 498,489.26-687,911.67-272,134.76

Finding the Fourth Proportional to 498,489.26, 687,911.67 and 272,134.76

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Solution

The fourth proportional to 498,489.26, 687,911.67 and 272,134.76 is: 375,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,489.26 : 687,911.67 = 272,134.76 : x
  2. Step 2: Convert to fraction form
    498,489.26/687,911.67 = 272,134.76/x
  3. Step 3: Cross multiply
    498,489.26x = 687,911.67 × 272,134.76
  4. Step 4: Simplify right side
    498,489.26x = 187,204,673,777.09
  5. Step 5: Solve for x
    x = 187,204,673,777.09/498,489.26
  6. Step 6: Final answer
    x = 375,544.05

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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.