Home / 780,179.24-1,170,362.66-274,635.23

Finding the Fourth Proportional to 780,179.24, 1,170,362.66 and 274,635.23

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Solution

The fourth proportional to 780,179.24, 1,170,362.66 and 274,635.23 is: 411,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,179.24 : 1,170,362.66 = 274,635.23 : x
  2. Step 2: Convert to fraction form
    780,179.24/1,170,362.66 = 274,635.23/x
  3. Step 3: Cross multiply
    780,179.24x = 1,170,362.66 × 274,635.23
  4. Step 4: Simplify right side
    780,179.24x = 321,422,811,087.52
  5. Step 5: Solve for x
    x = 321,422,811,087.52/780,179.24
  6. Step 6: Final answer
    x = 411,985.86

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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.