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Finding the Fourth Proportional to 783.23, 1,080.99 and 596.43

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Solution

The fourth proportional to 783.23, 1,080.99 and 596.43 is: 823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.23 : 1,080.99 = 596.43 : x
  2. Step 2: Convert to fraction form
    783.23/1,080.99 = 596.43/x
  3. Step 3: Cross multiply
    783.23x = 1,080.99 × 596.43
  4. Step 4: Simplify right side
    783.23x = 644,734.87
  5. Step 5: Solve for x
    x = 644,734.87/783.23
  6. Step 6: Final answer
    x = 823.18

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