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Finding the Fourth Proportional to 845.95, 1,167.53 and 496.64

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Solution

The fourth proportional to 845.95, 1,167.53 and 496.64 is: 685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.95 : 1,167.53 = 496.64 : x
  2. Step 2: Convert to fraction form
    845.95/1,167.53 = 496.64/x
  3. Step 3: Cross multiply
    845.95x = 1,167.53 × 496.64
  4. Step 4: Simplify right side
    845.95x = 579,842.10
  5. Step 5: Solve for x
    x = 579,842.10/845.95
  6. Step 6: Final answer
    x = 685.43

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Why These Related Problems?

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