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Finding the Fourth Proportional to 1,252.31, 1,879.07 and 603.09

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Solution

The fourth proportional to 1,252.31, 1,879.07 and 603.09 is: 904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.31 : 1,879.07 = 603.09 : x
  2. Step 2: Convert to fraction form
    1,252.31/1,879.07 = 603.09/x
  3. Step 3: Cross multiply
    1,252.31x = 1,879.07 × 603.09
  4. Step 4: Simplify right side
    1,252.31x = 1,133,245.31
  5. Step 5: Solve for x
    x = 1,133,245.31/1,252.31
  6. Step 6: Final answer
    x = 904.93

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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.