Home / 2,078,778.60-3,120,792.30-1,119,997.80

Finding the Fourth Proportional to 2,078,778.60, 3,120,792.30 and 1,119,997.80

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Solution

The fourth proportional to 2,078,778.60, 3,120,792.30 and 1,119,997.80 is: 1,681,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,778.60 : 3,120,792.30 = 1,119,997.80 : x
  2. Step 2: Convert to fraction form
    2,078,778.60/3,120,792.30 = 1,119,997.80/x
  3. Step 3: Cross multiply
    2,078,778.60x = 3,120,792.30 × 1,119,997.80
  4. Step 4: Simplify right side
    2,078,778.60x = 3,495,280,510,256.94
  5. Step 5: Solve for x
    x = 3,495,280,510,256.94/2,078,778.60
  6. Step 6: Final answer
    x = 1,681,410.67

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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.