Home / 1,915,286.20-2,643,102.94-1,055,827.60

Finding the Fourth Proportional to 1,915,286.20, 2,643,102.94 and 1,055,827.60

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Solution

The fourth proportional to 1,915,286.20, 2,643,102.94 and 1,055,827.60 is: 1,457,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,286.20 : 2,643,102.94 = 1,055,827.60 : x
  2. Step 2: Convert to fraction form
    1,915,286.20/2,643,102.94 = 1,055,827.60/x
  3. Step 3: Cross multiply
    1,915,286.20x = 2,643,102.94 × 1,055,827.60
  4. Step 4: Simplify right side
    1,915,286.20x = 2,790,661,033,693.14
  5. Step 5: Solve for x
    x = 2,790,661,033,693.14/1,915,286.20
  6. Step 6: Final answer
    x = 1,457,046.49

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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.