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Finding the Fourth Proportional to 399,089.54, 550,297.04 and 326,265.14

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Solution

The fourth proportional to 399,089.54, 550,297.04 and 326,265.14 is: 449,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,089.54 : 550,297.04 = 326,265.14 : x
  2. Step 2: Convert to fraction form
    399,089.54/550,297.04 = 326,265.14/x
  3. Step 3: Cross multiply
    399,089.54x = 550,297.04 × 326,265.14
  4. Step 4: Simplify right side
    399,089.54x = 179,542,740,797.19
  5. Step 5: Solve for x
    x = 179,542,740,797.19/399,089.54
  6. Step 6: Final answer
    x = 449,880.85

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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.