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Finding the Fourth Proportional to 512,539.80, 768,809.70 and 335,592.60

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Solution

The fourth proportional to 512,539.80, 768,809.70 and 335,592.60 is: 503,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,539.80 : 768,809.70 = 335,592.60 : x
  2. Step 2: Convert to fraction form
    512,539.80/768,809.70 = 335,592.60/x
  3. Step 3: Cross multiply
    512,539.80x = 768,809.70 × 335,592.60
  4. Step 4: Simplify right side
    512,539.80x = 258,006,846,128.22
  5. Step 5: Solve for x
    x = 258,006,846,128.22/512,539.80
  6. Step 6: Final answer
    x = 503,388.90

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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.