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Finding the Fourth Proportional to 1,044.96, 1,442.07 and 579.21

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Solution

The fourth proportional to 1,044.96, 1,442.07 and 579.21 is: 799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.96 : 1,442.07 = 579.21 : x
  2. Step 2: Convert to fraction form
    1,044.96/1,442.07 = 579.21/x
  3. Step 3: Cross multiply
    1,044.96x = 1,442.07 × 579.21
  4. Step 4: Simplify right side
    1,044.96x = 835,261.36
  5. Step 5: Solve for x
    x = 835,261.36/1,044.96
  6. Step 6: Final answer
    x = 799.32

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1.5x scale

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.