Home / 770,230.55-1,155,450.91-320,846.33

Finding the Fourth Proportional to 770,230.55, 1,155,450.91 and 320,846.33

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Solution

The fourth proportional to 770,230.55, 1,155,450.91 and 320,846.33 is: 481,313.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,230.55 : 1,155,450.91 = 320,846.33 : x
  2. Step 2: Convert to fraction form
    770,230.55/1,155,450.91 = 320,846.33/x
  3. Step 3: Cross multiply
    770,230.55x = 1,155,450.91 × 320,846.33
  4. Step 4: Simplify right side
    770,230.55x = 370,722,177,389.29
  5. Step 5: Solve for x
    x = 370,722,177,389.29/770,230.55
  6. Step 6: Final answer
    x = 481,313.26

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1.5x scale

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.