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Finding the Fourth Proportional to 512,436.80, 768,194.40 and 335,028.80

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Solution

The fourth proportional to 512,436.80, 768,194.40 and 335,028.80 is: 502,241.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,436.80 : 768,194.40 = 335,028.80 : x
  2. Step 2: Convert to fraction form
    512,436.80/768,194.40 = 335,028.80/x
  3. Step 3: Cross multiply
    512,436.80x = 768,194.40 × 335,028.80
  4. Step 4: Simplify right side
    512,436.80x = 257,367,247,998.72
  5. Step 5: Solve for x
    x = 257,367,247,998.72/512,436.80
  6. Step 6: Final answer
    x = 502,241.93

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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.