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Finding the Fourth Proportional to 801.72, 1,105.74 and 594.36

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Solution

The fourth proportional to 801.72, 1,105.74 and 594.36 is: 819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    801.72 : 1,105.74 = 594.36 : x
  2. Step 2: Convert to fraction form
    801.72/1,105.74 = 594.36/x
  3. Step 3: Cross multiply
    801.72x = 1,105.74 × 594.36
  4. Step 4: Simplify right side
    801.72x = 657,207.63
  5. Step 5: Solve for x
    x = 657,207.63/801.72
  6. Step 6: Final answer
    x = 819.75

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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.