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Finding the Fourth Proportional to 1,803.28, 2,704.80 and 504.70

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Solution

The fourth proportional to 1,803.28, 2,704.80 and 504.70 is: 757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.28 : 2,704.80 = 504.70 : x
  2. Step 2: Convert to fraction form
    1,803.28/2,704.80 = 504.70/x
  3. Step 3: Cross multiply
    1,803.28x = 2,704.80 × 504.70
  4. Step 4: Simplify right side
    1,803.28x = 1,365,112.56
  5. Step 5: Solve for x
    x = 1,365,112.56/1,803.28
  6. Step 6: Final answer
    x = 757.02

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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.