Home / 1,085,914.89-1,620,055.01-1,027,128.33

Finding the Fourth Proportional to 1,085,914.89, 1,620,055.01 and 1,027,128.33

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Solution

The fourth proportional to 1,085,914.89, 1,620,055.01 and 1,027,128.33 is: 1,532,352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,914.89 : 1,620,055.01 = 1,027,128.33 : x
  2. Step 2: Convert to fraction form
    1,085,914.89/1,620,055.01 = 1,027,128.33/x
  3. Step 3: Cross multiply
    1,085,914.89x = 1,620,055.01 × 1,027,128.33
  4. Step 4: Simplify right side
    1,085,914.89x = 1,664,004,399,497.25
  5. Step 5: Solve for x
    x = 1,664,004,399,497.25/1,085,914.89
  6. Step 6: Final answer
    x = 1,532,352.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.