Home / 851,128.20-1,276,736.04-220,047.48

Finding the Fourth Proportional to 851,128.20, 1,276,736.04 and 220,047.48

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Solution

The fourth proportional to 851,128.20, 1,276,736.04 and 220,047.48 is: 330,082.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,128.20 : 1,276,736.04 = 220,047.48 : x
  2. Step 2: Convert to fraction form
    851,128.20/1,276,736.04 = 220,047.48/x
  3. Step 3: Cross multiply
    851,128.20x = 1,276,736.04 × 220,047.48
  4. Step 4: Simplify right side
    851,128.20x = 280,942,548,227.18
  5. Step 5: Solve for x
    x = 280,942,548,227.18/851,128.20
  6. Step 6: Final answer
    x = 330,082.53

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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.