Home / 780,589.35-1,170,887.67-331,197.30

Finding the Fourth Proportional to 780,589.35, 1,170,887.67 and 331,197.30

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Solution

The fourth proportional to 780,589.35, 1,170,887.67 and 331,197.30 is: 496,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,589.35 : 1,170,887.67 = 331,197.30 : x
  2. Step 2: Convert to fraction form
    780,589.35/1,170,887.67 = 331,197.30/x
  3. Step 3: Cross multiply
    780,589.35x = 1,170,887.67 × 331,197.30
  4. Step 4: Simplify right side
    780,589.35x = 387,794,834,907.29
  5. Step 5: Solve for x
    x = 387,794,834,907.29/780,589.35
  6. Step 6: Final answer
    x = 496,797.50

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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.