Home / 1,382,261.46-1,907,289.53-770,280.08

Finding the Fourth Proportional to 1,382,261.46, 1,907,289.53 and 770,280.08

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Solution

The fourth proportional to 1,382,261.46, 1,907,289.53 and 770,280.08 is: 1,062,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,261.46 : 1,907,289.53 = 770,280.08 : x
  2. Step 2: Convert to fraction form
    1,382,261.46/1,907,289.53 = 770,280.08/x
  3. Step 3: Cross multiply
    1,382,261.46x = 1,907,289.53 × 770,280.08
  4. Step 4: Simplify right side
    1,382,261.46x = 1,469,147,136,313.59
  5. Step 5: Solve for x
    x = 1,469,147,136,313.59/1,382,261.46
  6. Step 6: Final answer
    x = 1,062,857.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.