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Finding the Fourth Proportional to 682.42, 941.37 and 458.44

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Solution

The fourth proportional to 682.42, 941.37 and 458.44 is: 632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.42 : 941.37 = 458.44 : x
  2. Step 2: Convert to fraction form
    682.42/941.37 = 458.44/x
  3. Step 3: Cross multiply
    682.42x = 941.37 × 458.44
  4. Step 4: Simplify right side
    682.42x = 431,561.66
  5. Step 5: Solve for x
    x = 431,561.66/682.42
  6. Step 6: Final answer
    x = 632.40

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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.