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Finding the Fourth Proportional to 1,060.13, 1,588.82 and 443.09

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Solution

The fourth proportional to 1,060.13, 1,588.82 and 443.09 is: 664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.13 : 1,588.82 = 443.09 : x
  2. Step 2: Convert to fraction form
    1,060.13/1,588.82 = 443.09/x
  3. Step 3: Cross multiply
    1,060.13x = 1,588.82 × 443.09
  4. Step 4: Simplify right side
    1,060.13x = 703,992.01
  5. Step 5: Solve for x
    x = 703,992.01/1,060.13
  6. Step 6: Final answer
    x = 664.06

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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.