Home / 1,362,136.80-2,040,440.40-770,469.60

Finding the Fourth Proportional to 1,362,136.80, 2,040,440.40 and 770,469.60

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Solution

The fourth proportional to 1,362,136.80, 2,040,440.40 and 770,469.60 is: 1,154,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,136.80 : 2,040,440.40 = 770,469.60 : x
  2. Step 2: Convert to fraction form
    1,362,136.80/2,040,440.40 = 770,469.60/x
  3. Step 3: Cross multiply
    1,362,136.80x = 2,040,440.40 × 770,469.60
  4. Step 4: Simplify right side
    1,362,136.80x = 1,572,097,298,811.84
  5. Step 5: Solve for x
    x = 1,572,097,298,811.84/1,362,136.80
  6. Step 6: Final answer
    x = 1,154,140.54

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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.