Home / 498,491.22-687,914.37-272,136.72

Finding the Fourth Proportional to 498,491.22, 687,914.37 and 272,136.72

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Solution

The fourth proportional to 498,491.22, 687,914.37 and 272,136.72 is: 375,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,491.22 : 687,914.37 = 272,136.72 : x
  2. Step 2: Convert to fraction form
    498,491.22/687,914.37 = 272,136.72/x
  3. Step 3: Cross multiply
    498,491.22x = 687,914.37 × 272,136.72
  4. Step 4: Simplify right side
    498,491.22x = 187,206,760,292.67
  5. Step 5: Solve for x
    x = 187,206,760,292.67/498,491.22
  6. Step 6: Final answer
    x = 375,546.76

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1.5x scale

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.