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Finding the Fourth Proportional to 683.06, 1,023.66 and 358.65

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Solution

The fourth proportional to 683.06, 1,023.66 and 358.65 is: 537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.06 : 1,023.66 = 358.65 : x
  2. Step 2: Convert to fraction form
    683.06/1,023.66 = 358.65/x
  3. Step 3: Cross multiply
    683.06x = 1,023.66 × 358.65
  4. Step 4: Simplify right side
    683.06x = 367,135.66
  5. Step 5: Solve for x
    x = 367,135.66/683.06
  6. Step 6: Final answer
    x = 537.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.