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Finding the Fourth Proportional to 634.68, 950.48 and 439.13

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Solution

The fourth proportional to 634.68, 950.48 and 439.13 is: 657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.68 : 950.48 = 439.13 : x
  2. Step 2: Convert to fraction form
    634.68/950.48 = 439.13/x
  3. Step 3: Cross multiply
    634.68x = 950.48 × 439.13
  4. Step 4: Simplify right side
    634.68x = 417,386.02
  5. Step 5: Solve for x
    x = 417,386.02/634.68
  6. Step 6: Final answer
    x = 657.63

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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.