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Finding the Fourth Proportional to 829.04, 1,245.37 and 801.36

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Solution

The fourth proportional to 829.04, 1,245.37 and 801.36 is: 1,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    829.04 : 1,245.37 = 801.36 : x
  2. Step 2: Convert to fraction form
    829.04/1,245.37 = 801.36/x
  3. Step 3: Cross multiply
    829.04x = 1,245.37 × 801.36
  4. Step 4: Simplify right side
    829.04x = 997,984.79
  5. Step 5: Solve for x
    x = 997,984.79/829.04
  6. Step 6: Final answer
    x = 1,203.79

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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.