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Finding the Fourth Proportional to 1,044.99, 1,442.09 and 579.24

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Solution

The fourth proportional to 1,044.99, 1,442.09 and 579.24 is: 799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.99 : 1,442.09 = 579.24 : x
  2. Step 2: Convert to fraction form
    1,044.99/1,442.09 = 579.24/x
  3. Step 3: Cross multiply
    1,044.99x = 1,442.09 × 579.24
  4. Step 4: Simplify right side
    1,044.99x = 835,313.32
  5. Step 5: Solve for x
    x = 835,313.32/1,044.99
  6. Step 6: Final answer
    x = 799.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.