Home / 770,918.80-1,155,884.88-370,762.60

Finding the Fourth Proportional to 770,918.80, 1,155,884.88 and 370,762.60

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Solution

The fourth proportional to 770,918.80, 1,155,884.88 and 370,762.60 is: 555,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,918.80 : 1,155,884.88 = 370,762.60 : x
  2. Step 2: Convert to fraction form
    770,918.80/1,155,884.88 = 370,762.60/x
  3. Step 3: Cross multiply
    770,918.80x = 1,155,884.88 × 370,762.60
  4. Step 4: Simplify right side
    770,918.80x = 428,558,883,409.49
  5. Step 5: Solve for x
    x = 428,558,883,409.49/770,918.80
  6. Step 6: Final answer
    x = 555,906.64

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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.