Home / 1,505,688.88-2,078,015.88-861,169.36

Finding the Fourth Proportional to 1,505,688.88, 2,078,015.88 and 861,169.36

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Solution

The fourth proportional to 1,505,688.88, 2,078,015.88 and 861,169.36 is: 1,188,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,688.88 : 2,078,015.88 = 861,169.36 : x
  2. Step 2: Convert to fraction form
    1,505,688.88/2,078,015.88 = 861,169.36/x
  3. Step 3: Cross multiply
    1,505,688.88x = 2,078,015.88 × 861,169.36
  4. Step 4: Simplify right side
    1,505,688.88x = 1,789,523,605,449.44
  5. Step 5: Solve for x
    x = 1,789,523,605,449.44/1,505,688.88
  6. Step 6: Final answer
    x = 1,188,508.22

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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.