Home / 3,119,279.70-4,678,919.55-1,906,806.90

Finding the Fourth Proportional to 3,119,279.70, 4,678,919.55 and 1,906,806.90

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Solution

The fourth proportional to 3,119,279.70, 4,678,919.55 and 1,906,806.90 is: 2,860,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,279.70 : 4,678,919.55 = 1,906,806.90 : x
  2. Step 2: Convert to fraction form
    3,119,279.70/4,678,919.55 = 1,906,806.90/x
  3. Step 3: Cross multiply
    3,119,279.70x = 4,678,919.55 × 1,906,806.90
  4. Step 4: Simplify right side
    3,119,279.70x = 8,921,796,082,484.90
  5. Step 5: Solve for x
    x = 8,921,796,082,484.90/3,119,279.70
  6. Step 6: Final answer
    x = 2,860,210.35

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Similar ratio
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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.