Home / 1,405,036.64-1,938,997.52-861,067.32

Finding the Fourth Proportional to 1,405,036.64, 1,938,997.52 and 861,067.32

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Solution

The fourth proportional to 1,405,036.64, 1,938,997.52 and 861,067.32 is: 1,188,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,036.64 : 1,938,997.52 = 861,067.32 : x
  2. Step 2: Convert to fraction form
    1,405,036.64/1,938,997.52 = 861,067.32/x
  3. Step 3: Cross multiply
    1,405,036.64x = 1,938,997.52 × 861,067.32
  4. Step 4: Simplify right side
    1,405,036.64x = 1,669,607,398,033.05
  5. Step 5: Solve for x
    x = 1,669,607,398,033.05/1,405,036.64
  6. Step 6: Final answer
    x = 1,188,301.68

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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.