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Finding the Fourth Proportional to 552,080.70, 828,121.05 and 285,922.80

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Solution

The fourth proportional to 552,080.70, 828,121.05 and 285,922.80 is: 428,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,080.70 : 828,121.05 = 285,922.80 : x
  2. Step 2: Convert to fraction form
    552,080.70/828,121.05 = 285,922.80/x
  3. Step 3: Cross multiply
    552,080.70x = 828,121.05 × 285,922.80
  4. Step 4: Simplify right side
    552,080.70x = 236,778,689,354.94
  5. Step 5: Solve for x
    x = 236,778,689,354.94/552,080.70
  6. Step 6: Final answer
    x = 428,884.20

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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.