Home / 780,108.72-1,170,163.08-274,550.64

Finding the Fourth Proportional to 780,108.72, 1,170,163.08 and 274,550.64

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Solution

The fourth proportional to 780,108.72, 1,170,163.08 and 274,550.64 is: 411,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,108.72 : 1,170,163.08 = 274,550.64 : x
  2. Step 2: Convert to fraction form
    780,108.72/1,170,163.08 = 274,550.64/x
  3. Step 3: Cross multiply
    780,108.72x = 1,170,163.08 × 274,550.64
  4. Step 4: Simplify right side
    780,108.72x = 321,269,022,518.37
  5. Step 5: Solve for x
    x = 321,269,022,518.37/780,108.72
  6. Step 6: Final answer
    x = 411,825.96

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Similar ratio
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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.