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Finding the Fourth Proportional to 849.02, 1,170.60 and 683.24

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Solution

The fourth proportional to 849.02, 1,170.60 and 683.24 is: 942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    849.02 : 1,170.60 = 683.24 : x
  2. Step 2: Convert to fraction form
    849.02/1,170.60 = 683.24/x
  3. Step 3: Cross multiply
    849.02x = 1,170.60 × 683.24
  4. Step 4: Simplify right side
    849.02x = 799,800.74
  5. Step 5: Solve for x
    x = 799,800.74/849.02
  6. Step 6: Final answer
    x = 942.03

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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.