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Finding the Fourth Proportional to 552,147.40, 828,221.10 and 328,198.60

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Solution

The fourth proportional to 552,147.40, 828,221.10 and 328,198.60 is: 492,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,147.40 : 828,221.10 = 328,198.60 : x
  2. Step 2: Convert to fraction form
    552,147.40/828,221.10 = 328,198.60/x
  3. Step 3: Cross multiply
    552,147.40x = 828,221.10 × 328,198.60
  4. Step 4: Simplify right side
    552,147.40x = 271,821,005,510.46
  5. Step 5: Solve for x
    x = 271,821,005,510.46/552,147.40
  6. Step 6: Final answer
    x = 492,297.90

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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.