Home / 770,004.49-1,155,121.59-320,469.41

Finding the Fourth Proportional to 770,004.49, 1,155,121.59 and 320,469.41

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Solution

The fourth proportional to 770,004.49, 1,155,121.59 and 320,469.41 is: 480,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,004.49 : 1,155,121.59 = 320,469.41 : x
  2. Step 2: Convert to fraction form
    770,004.49/1,155,121.59 = 320,469.41/x
  3. Step 3: Cross multiply
    770,004.49x = 1,155,121.59 × 320,469.41
  4. Step 4: Simplify right side
    770,004.49x = 370,181,134,425.56
  5. Step 5: Solve for x
    x = 370,181,134,425.56/770,004.49
  6. Step 6: Final answer
    x = 480,751.92

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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.