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Finding the Fourth Proportional to 399,304.73, 597,137.81 and 298,173.80

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Solution

The fourth proportional to 399,304.73, 597,137.81 and 298,173.80 is: 445,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,304.73 : 597,137.81 = 298,173.80 : x
  2. Step 2: Convert to fraction form
    399,304.73/597,137.81 = 298,173.80/x
  3. Step 3: Cross multiply
    399,304.73x = 597,137.81 × 298,173.80
  4. Step 4: Simplify right side
    399,304.73x = 178,050,852,169.66
  5. Step 5: Solve for x
    x = 178,050,852,169.66/399,304.73
  6. Step 6: Final answer
    x = 445,902.18

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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.