Home / 2,085,796.80-3,128,986.80-887,709.60

Finding the Fourth Proportional to 2,085,796.80, 3,128,986.80 and 887,709.60

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Solution

The fourth proportional to 2,085,796.80, 3,128,986.80 and 887,709.60 is: 1,331,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,796.80 : 3,128,986.80 = 887,709.60 : x
  2. Step 2: Convert to fraction form
    2,085,796.80/3,128,986.80 = 887,709.60/x
  3. Step 3: Cross multiply
    2,085,796.80x = 3,128,986.80 × 887,709.60
  4. Step 4: Simplify right side
    2,085,796.80x = 2,777,631,620,633.28
  5. Step 5: Solve for x
    x = 2,777,631,620,633.28/2,085,796.80
  6. Step 6: Final answer
    x = 1,331,688.50

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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.