Home / 2,858,896.80-3,945,484.62-1,890,347.40

Finding the Fourth Proportional to 2,858,896.80, 3,945,484.62 and 1,890,347.40

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Solution

The fourth proportional to 2,858,896.80, 3,945,484.62 and 1,890,347.40 is: 2,608,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858,896.80 : 3,945,484.62 = 1,890,347.40 : x
  2. Step 2: Convert to fraction form
    2,858,896.80/3,945,484.62 = 1,890,347.40/x
  3. Step 3: Cross multiply
    2,858,896.80x = 3,945,484.62 × 1,890,347.40
  4. Step 4: Simplify right side
    2,858,896.80x = 7,458,336,593,156.99
  5. Step 5: Solve for x
    x = 7,458,336,593,156.99/2,858,896.80
  6. Step 6: Final answer
    x = 2,608,816.31

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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.