Home / 859,150.80-1,290,103.20-683,121.60

Finding the Fourth Proportional to 859,150.80, 1,290,103.20 and 683,121.60

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Solution

The fourth proportional to 859,150.80, 1,290,103.20 and 683,121.60 is: 1,025,777.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,150.80 : 1,290,103.20 = 683,121.60 : x
  2. Step 2: Convert to fraction form
    859,150.80/1,290,103.20 = 683,121.60/x
  3. Step 3: Cross multiply
    859,150.80x = 1,290,103.20 × 683,121.60
  4. Step 4: Simplify right side
    859,150.80x = 881,297,362,149.12
  5. Step 5: Solve for x
    x = 881,297,362,149.12/859,150.80
  6. Step 6: Final answer
    x = 1,025,777.27

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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.