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Finding the Fourth Proportional to 529.26, 797.48 and 439.95

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Solution

The fourth proportional to 529.26, 797.48 and 439.95 is: 662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.26 : 797.48 = 439.95 : x
  2. Step 2: Convert to fraction form
    529.26/797.48 = 439.95/x
  3. Step 3: Cross multiply
    529.26x = 797.48 × 439.95
  4. Step 4: Simplify right side
    529.26x = 350,852.22
  5. Step 5: Solve for x
    x = 350,852.22/529.26
  6. Step 6: Final answer
    x = 662.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.