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Finding the Fourth Proportional to 819.03, 1,131.07 and 700.32

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Solution

The fourth proportional to 819.03, 1,131.07 and 700.32 is: 967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    819.03 : 1,131.07 = 700.32 : x
  2. Step 2: Convert to fraction form
    819.03/1,131.07 = 700.32/x
  3. Step 3: Cross multiply
    819.03x = 1,131.07 × 700.32
  4. Step 4: Simplify right side
    819.03x = 792,110.58
  5. Step 5: Solve for x
    x = 792,110.58/819.03
  6. Step 6: Final answer
    x = 967.13

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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.