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Finding the Fourth Proportional to 883.09, 1,322.81 and 574.18

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Solution

The fourth proportional to 883.09, 1,322.81 and 574.18 is: 860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.09 : 1,322.81 = 574.18 : x
  2. Step 2: Convert to fraction form
    883.09/1,322.81 = 574.18/x
  3. Step 3: Cross multiply
    883.09x = 1,322.81 × 574.18
  4. Step 4: Simplify right side
    883.09x = 759,531.05
  5. Step 5: Solve for x
    x = 759,531.05/883.09
  6. Step 6: Final answer
    x = 860.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.