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Finding the Fourth Proportional to 846.60, 1,168.83 and 548.12

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Solution

The fourth proportional to 846.60, 1,168.83 and 548.12 is: 756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.60 : 1,168.83 = 548.12 : x
  2. Step 2: Convert to fraction form
    846.60/1,168.83 = 548.12/x
  3. Step 3: Cross multiply
    846.60x = 1,168.83 × 548.12
  4. Step 4: Simplify right side
    846.60x = 640,655.45
  5. Step 5: Solve for x
    x = 640,655.45/846.60
  6. Step 6: Final answer
    x = 756.74

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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.