Home / 1,297,260.80-1,940,642.40-1,139,796.80

Finding the Fourth Proportional to 1,297,260.80, 1,940,642.40 and 1,139,796.80

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Solution

The fourth proportional to 1,297,260.80, 1,940,642.40 and 1,139,796.80 is: 1,705,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,260.80 : 1,940,642.40 = 1,139,796.80 : x
  2. Step 2: Convert to fraction form
    1,297,260.80/1,940,642.40 = 1,139,796.80/x
  3. Step 3: Cross multiply
    1,297,260.80x = 1,940,642.40 × 1,139,796.80
  4. Step 4: Simplify right side
    1,297,260.80x = 2,211,937,997,464.32
  5. Step 5: Solve for x
    x = 2,211,937,997,464.32/1,297,260.80
  6. Step 6: Final answer
    x = 1,705,083.51

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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.