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Finding the Fourth Proportional to 1,297,991.04, 1,947,040 and 445,648

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Solution

The fourth proportional to 1,297,991.04, 1,947,040 and 445,648 is: 668,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,991.04 : 1,947,040 = 445,648 : x
  2. Step 2: Convert to fraction form
    1,297,991.04/1,947,040 = 445,648/x
  3. Step 3: Cross multiply
    1,297,991.04x = 1,947,040 × 445,648
  4. Step 4: Simplify right side
    1,297,991.04x = 867,694,481,920
  5. Step 5: Solve for x
    x = 867,694,481,920/1,297,991.04
  6. Step 6: Final answer
    x = 668,490.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.