Home / 480,399.06-720,035.78-195,912.21

Finding the Fourth Proportional to 480,399.06, 720,035.78 and 195,912.21

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Solution

The fourth proportional to 480,399.06, 720,035.78 and 195,912.21 is: 293,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,399.06 : 720,035.78 = 195,912.21 : x
  2. Step 2: Convert to fraction form
    480,399.06/720,035.78 = 195,912.21/x
  3. Step 3: Cross multiply
    480,399.06x = 720,035.78 × 195,912.21
  4. Step 4: Simplify right side
    480,399.06x = 141,063,799,959.31
  5. Step 5: Solve for x
    x = 141,063,799,959.31/480,399.06
  6. Step 6: Final answer
    x = 293,638.79

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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.