Home / 324,629.06-486,995.91-99,989.42

Finding the Fourth Proportional to 324,629.06, 486,995.91 and 99,989.42

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Solution

The fourth proportional to 324,629.06, 486,995.91 and 99,989.42 is: 150,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,629.06 : 486,995.91 = 99,989.42 : x
  2. Step 2: Convert to fraction form
    324,629.06/486,995.91 = 99,989.42/x
  3. Step 3: Cross multiply
    324,629.06x = 486,995.91 × 99,989.42
  4. Step 4: Simplify right side
    324,629.06x = 48,694,438,583.27
  5. Step 5: Solve for x
    x = 48,694,438,583.27/324,629.06
  6. Step 6: Final answer
    x = 150,000.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.