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Finding the Fourth Proportional to 552,446.20, 828,231.90 and 303,128.20

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Solution

The fourth proportional to 552,446.20, 828,231.90 and 303,128.20 is: 454,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,446.20 : 828,231.90 = 303,128.20 : x
  2. Step 2: Convert to fraction form
    552,446.20/828,231.90 = 303,128.20/x
  3. Step 3: Cross multiply
    552,446.20x = 828,231.90 × 303,128.20
  4. Step 4: Simplify right side
    552,446.20x = 251,060,445,029.58
  5. Step 5: Solve for x
    x = 251,060,445,029.58/552,446.20
  6. Step 6: Final answer
    x = 454,452.30

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1.5x scale

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.