Home / 1,260,576.75-1,890,881.60-419,128.50

Finding the Fourth Proportional to 1,260,576.75, 1,890,881.60 and 419,128.50

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Solution

The fourth proportional to 1,260,576.75, 1,890,881.60 and 419,128.50 is: 628,698.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,576.75 : 1,890,881.60 = 419,128.50 : x
  2. Step 2: Convert to fraction form
    1,260,576.75/1,890,881.60 = 419,128.50/x
  3. Step 3: Cross multiply
    1,260,576.75x = 1,890,881.60 × 419,128.50
  4. Step 4: Simplify right side
    1,260,576.75x = 792,522,366,589.96
  5. Step 5: Solve for x
    x = 792,522,366,589.96/1,260,576.75
  6. Step 6: Final answer
    x = 628,698.23

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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.