Home / 1,587,059.44-2,190,141.51-861,907.34

Finding the Fourth Proportional to 1,587,059.44, 2,190,141.51 and 861,907.34

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Solution

The fourth proportional to 1,587,059.44, 2,190,141.51 and 861,907.34 is: 1,189,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,059.44 : 2,190,141.51 = 861,907.34 : x
  2. Step 2: Convert to fraction form
    1,587,059.44/2,190,141.51 = 861,907.34/x
  3. Step 3: Cross multiply
    1,587,059.44x = 2,190,141.51 × 861,907.34
  4. Step 4: Simplify right side
    1,587,059.44x = 1,887,699,043,107.68
  5. Step 5: Solve for x
    x = 1,887,699,043,107.68/1,587,059.44
  6. Step 6: Final answer
    x = 1,189,431.85

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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.