Home / 2,059,429.80-3,089,144.70-639,629.40

Finding the Fourth Proportional to 2,059,429.80, 3,089,144.70 and 639,629.40

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Solution

The fourth proportional to 2,059,429.80, 3,089,144.70 and 639,629.40 is: 959,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,429.80 : 3,089,144.70 = 639,629.40 : x
  2. Step 2: Convert to fraction form
    2,059,429.80/3,089,144.70 = 639,629.40/x
  3. Step 3: Cross multiply
    2,059,429.80x = 3,089,144.70 × 639,629.40
  4. Step 4: Simplify right side
    2,059,429.80x = 1,975,907,770,974.18
  5. Step 5: Solve for x
    x = 1,975,907,770,974.18/2,059,429.80
  6. Step 6: Final answer
    x = 959,444.10

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Similar ratio
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1.5x scale

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.