Home / 828,311.75-1,242,469.36-229,274.64

Finding the Fourth Proportional to 828,311.75, 1,242,469.36 and 229,274.64

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Solution

The fourth proportional to 828,311.75, 1,242,469.36 and 229,274.64 is: 343,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,311.75 : 1,242,469.36 = 229,274.64 : x
  2. Step 2: Convert to fraction form
    828,311.75/1,242,469.36 = 229,274.64/x
  3. Step 3: Cross multiply
    828,311.75x = 1,242,469.36 × 229,274.64
  4. Step 4: Simplify right side
    828,311.75x = 284,866,714,651.84
  5. Step 5: Solve for x
    x = 284,866,714,651.84/828,311.75
  6. Step 6: Final answer
    x = 343,912.44

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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.