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Finding the Fourth Proportional to 1,803.30, 2,704.55 and 570.81

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Solution

The fourth proportional to 1,803.30, 2,704.55 and 570.81 is: 856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.30 : 2,704.55 = 570.81 : x
  2. Step 2: Convert to fraction form
    1,803.30/2,704.55 = 570.81/x
  3. Step 3: Cross multiply
    1,803.30x = 2,704.55 × 570.81
  4. Step 4: Simplify right side
    1,803.30x = 1,543,781.33
  5. Step 5: Solve for x
    x = 1,543,781.33/1,803.30
  6. Step 6: Final answer
    x = 856.09

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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.