Home / 850.40-1,173.04-617.12

Finding the Fourth Proportional to 850.40, 1,173.04 and 617.12

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Solution

The fourth proportional to 850.40, 1,173.04 and 617.12 is: 851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.40 : 1,173.04 = 617.12 : x
  2. Step 2: Convert to fraction form
    850.40/1,173.04 = 617.12/x
  3. Step 3: Cross multiply
    850.40x = 1,173.04 × 617.12
  4. Step 4: Simplify right side
    850.40x = 723,906.44
  5. Step 5: Solve for x
    x = 723,906.44/850.40
  6. Step 6: Final answer
    x = 851.25

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1.5x scale

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.