Home / 2,783,138.40-4,174,270.20-985,764.60

Finding the Fourth Proportional to 2,783,138.40, 4,174,270.20 and 985,764.60

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Solution

The fourth proportional to 2,783,138.40, 4,174,270.20 and 985,764.60 is: 1,478,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783,138.40 : 4,174,270.20 = 985,764.60 : x
  2. Step 2: Convert to fraction form
    2,783,138.40/4,174,270.20 = 985,764.60/x
  3. Step 3: Cross multiply
    2,783,138.40x = 4,174,270.20 × 985,764.60
  4. Step 4: Simplify right side
    2,783,138.40x = 4,114,847,793,994.92
  5. Step 5: Solve for x
    x = 4,114,847,793,994.92/2,783,138.40
  6. Step 6: Final answer
    x = 1,478,491.98

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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.