Home / 603,856.80-905,785.20-272,080.80

Finding the Fourth Proportional to 603,856.80, 905,785.20 and 272,080.80

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Solution

The fourth proportional to 603,856.80, 905,785.20 and 272,080.80 is: 408,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,856.80 : 905,785.20 = 272,080.80 : x
  2. Step 2: Convert to fraction form
    603,856.80/905,785.20 = 272,080.80/x
  3. Step 3: Cross multiply
    603,856.80x = 905,785.20 × 272,080.80
  4. Step 4: Simplify right side
    603,856.80x = 246,446,761,844.16
  5. Step 5: Solve for x
    x = 246,446,761,844.16/603,856.80
  6. Step 6: Final answer
    x = 408,121.20

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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.