Home / 770,200.80-1,155,498.60-320,772.24

Finding the Fourth Proportional to 770,200.80, 1,155,498.60 and 320,772.24

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Solution

The fourth proportional to 770,200.80, 1,155,498.60 and 320,772.24 is: 481,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,200.80 : 1,155,498.60 = 320,772.24 : x
  2. Step 2: Convert to fraction form
    770,200.80/1,155,498.60 = 320,772.24/x
  3. Step 3: Cross multiply
    770,200.80x = 1,155,498.60 × 320,772.24
  4. Step 4: Simplify right side
    770,200.80x = 370,651,874,238.86
  5. Step 5: Solve for x
    x = 370,651,874,238.86/770,200.80
  6. Step 6: Final answer
    x = 481,240.57

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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.