Home / 1,919,025.42-2,647,144.87-1,239,961.92

Finding the Fourth Proportional to 1,919,025.42, 2,647,144.87 and 1,239,961.92

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Solution

The fourth proportional to 1,919,025.42, 2,647,144.87 and 1,239,961.92 is: 1,710,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,025.42 : 2,647,144.87 = 1,239,961.92 : x
  2. Step 2: Convert to fraction form
    1,919,025.42/2,647,144.87 = 1,239,961.92/x
  3. Step 3: Cross multiply
    1,919,025.42x = 2,647,144.87 × 1,239,961.92
  4. Step 4: Simplify right side
    1,919,025.42x = 3,282,358,835,523.35
  5. Step 5: Solve for x
    x = 3,282,358,835,523.35/1,919,025.42
  6. Step 6: Final answer
    x = 1,710,430.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.