Home / 1,919,015.40-2,647,131.08-1,239,951.90

Finding the Fourth Proportional to 1,919,015.40, 2,647,131.08 and 1,239,951.90

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Solution

The fourth proportional to 1,919,015.40, 2,647,131.08 and 1,239,951.90 is: 1,710,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,015.40 : 2,647,131.08 = 1,239,951.90 : x
  2. Step 2: Convert to fraction form
    1,919,015.40/2,647,131.08 = 1,239,951.90/x
  3. Step 3: Cross multiply
    1,919,015.40x = 2,647,131.08 × 1,239,951.90
  4. Step 4: Simplify right side
    1,919,015.40x = 3,282,315,208,006.65
  5. Step 5: Solve for x
    x = 3,282,315,208,006.65/1,919,015.40
  6. Step 6: Final answer
    x = 1,710,416.30

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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.