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Finding the Fourth Proportional to 683.12, 943.09 and 450.92

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Solution

The fourth proportional to 683.12, 943.09 and 450.92 is: 622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.12 : 943.09 = 450.92 : x
  2. Step 2: Convert to fraction form
    683.12/943.09 = 450.92/x
  3. Step 3: Cross multiply
    683.12x = 943.09 × 450.92
  4. Step 4: Simplify right side
    683.12x = 425,252.30
  5. Step 5: Solve for x
    x = 425,252.30/683.12
  6. Step 6: Final answer
    x = 622.52

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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.