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Finding the Fourth Proportional to 675.44, 932.24 and 439.68

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Solution

The fourth proportional to 675.44, 932.24 and 439.68 is: 606.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.44 : 932.24 = 439.68 : x
  2. Step 2: Convert to fraction form
    675.44/932.24 = 439.68/x
  3. Step 3: Cross multiply
    675.44x = 932.24 × 439.68
  4. Step 4: Simplify right side
    675.44x = 409,887.28
  5. Step 5: Solve for x
    x = 409,887.28/675.44
  6. Step 6: Final answer
    x = 606.84

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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.