Home / 2,099,792.70-3,149,689.05-1,298,475.90

Finding the Fourth Proportional to 2,099,792.70, 3,149,689.05 and 1,298,475.90

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Solution

The fourth proportional to 2,099,792.70, 3,149,689.05 and 1,298,475.90 is: 1,947,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,792.70 : 3,149,689.05 = 1,298,475.90 : x
  2. Step 2: Convert to fraction form
    2,099,792.70/3,149,689.05 = 1,298,475.90/x
  3. Step 3: Cross multiply
    2,099,792.70x = 3,149,689.05 × 1,298,475.90
  4. Step 4: Simplify right side
    2,099,792.70x = 4,089,795,323,918.89
  5. Step 5: Solve for x
    x = 4,089,795,323,918.89/2,099,792.70
  6. Step 6: Final answer
    x = 1,947,713.85

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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.