Home / 859,178.80-1,290,145.20-683,149.60

Finding the Fourth Proportional to 859,178.80, 1,290,145.20 and 683,149.60

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Solution

The fourth proportional to 859,178.80, 1,290,145.20 and 683,149.60 is: 1,025,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,178.80 : 1,290,145.20 = 683,149.60 : x
  2. Step 2: Convert to fraction form
    859,178.80/1,290,145.20 = 683,149.60/x
  3. Step 3: Cross multiply
    859,178.80x = 1,290,145.20 × 683,149.60
  4. Step 4: Simplify right side
    859,178.80x = 881,362,177,321.92
  5. Step 5: Solve for x
    x = 881,362,177,321.92/859,178.80
  6. Step 6: Final answer
    x = 1,025,819.28

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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.