Home / 729,241.26-1,093,978.53-308,520.78

Finding the Fourth Proportional to 729,241.26, 1,093,978.53 and 308,520.78

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Solution

The fourth proportional to 729,241.26, 1,093,978.53 and 308,520.78 is: 462,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,241.26 : 1,093,978.53 = 308,520.78 : x
  2. Step 2: Convert to fraction form
    729,241.26/1,093,978.53 = 308,520.78/x
  3. Step 3: Cross multiply
    729,241.26x = 1,093,978.53 × 308,520.78
  4. Step 4: Simplify right side
    729,241.26x = 337,515,109,378.85
  5. Step 5: Solve for x
    x = 337,515,109,378.85/729,241.26
  6. Step 6: Final answer
    x = 462,830.52

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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.