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Finding the Fourth Proportional to 399,893.80, 599,840.70 and 367,234.60

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Solution

The fourth proportional to 399,893.80, 599,840.70 and 367,234.60 is: 550,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,893.80 : 599,840.70 = 367,234.60 : x
  2. Step 2: Convert to fraction form
    399,893.80/599,840.70 = 367,234.60/x
  3. Step 3: Cross multiply
    399,893.80x = 599,840.70 × 367,234.60
  4. Step 4: Simplify right side
    399,893.80x = 220,282,259,528.22
  5. Step 5: Solve for x
    x = 220,282,259,528.22/399,893.80
  6. Step 6: Final answer
    x = 550,851.90

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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.