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Finding the Fourth Proportional to 784.96, 1,175.04 and 568.48

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Solution

The fourth proportional to 784.96, 1,175.04 and 568.48 is: 850.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    784.96 : 1,175.04 = 568.48 : x
  2. Step 2: Convert to fraction form
    784.96/1,175.04 = 568.48/x
  3. Step 3: Cross multiply
    784.96x = 1,175.04 × 568.48
  4. Step 4: Simplify right side
    784.96x = 667,986.74
  5. Step 5: Solve for x
    x = 667,986.74/784.96
  6. Step 6: Final answer
    x = 850.98

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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.