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Finding the Fourth Proportional to 798.33, 1,190.33 and 783.75

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Solution

The fourth proportional to 798.33, 1,190.33 and 783.75 is: 1,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.33 : 1,190.33 = 783.75 : x
  2. Step 2: Convert to fraction form
    798.33/1,190.33 = 783.75/x
  3. Step 3: Cross multiply
    798.33x = 1,190.33 × 783.75
  4. Step 4: Simplify right side
    798.33x = 932,923.10
  5. Step 5: Solve for x
    x = 932,923.10/798.33
  6. Step 6: Final answer
    x = 1,168.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.