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Finding the Fourth Proportional to 1,252.56, 1,879.26 and 603.22

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Solution

The fourth proportional to 1,252.56, 1,879.26 and 603.22 is: 905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.56 : 1,879.26 = 603.22 : x
  2. Step 2: Convert to fraction form
    1,252.56/1,879.26 = 603.22/x
  3. Step 3: Cross multiply
    1,252.56x = 1,879.26 × 603.22
  4. Step 4: Simplify right side
    1,252.56x = 1,133,607.22
  5. Step 5: Solve for x
    x = 1,133,607.22/1,252.56
  6. Step 6: Final answer
    x = 905.03

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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.