Home / 770,195.80-1,155,491.10-320,767.24

Finding the Fourth Proportional to 770,195.80, 1,155,491.10 and 320,767.24

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Solution

The fourth proportional to 770,195.80, 1,155,491.10 and 320,767.24 is: 481,233.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,195.80 : 1,155,491.10 = 320,767.24 : x
  2. Step 2: Convert to fraction form
    770,195.80/1,155,491.10 = 320,767.24/x
  3. Step 3: Cross multiply
    770,195.80x = 1,155,491.10 × 320,767.24
  4. Step 4: Simplify right side
    770,195.80x = 370,643,690,991.56
  5. Step 5: Solve for x
    x = 370,643,690,991.56/770,195.80
  6. Step 6: Final answer
    x = 481,233.07

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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.