Home / 729,135.98-1,093,756.53-279,856.85

Finding the Fourth Proportional to 729,135.98, 1,093,756.53 and 279,856.85

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Solution

The fourth proportional to 729,135.98, 1,093,756.53 and 279,856.85 is: 419,805.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,135.98 : 1,093,756.53 = 279,856.85 : x
  2. Step 2: Convert to fraction form
    729,135.98/1,093,756.53 = 279,856.85/x
  3. Step 3: Cross multiply
    729,135.98x = 1,093,756.53 × 279,856.85
  4. Step 4: Simplify right side
    729,135.98x = 306,095,251,683.95
  5. Step 5: Solve for x
    x = 306,095,251,683.95/729,135.98
  6. Step 6: Final answer
    x = 419,805.44

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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.