Home / 1,915,282.20-2,643,097.42-1,055,823.60

Finding the Fourth Proportional to 1,915,282.20, 2,643,097.42 and 1,055,823.60

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Solution

The fourth proportional to 1,915,282.20, 2,643,097.42 and 1,055,823.60 is: 1,457,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,282.20 : 2,643,097.42 = 1,055,823.60 : x
  2. Step 2: Convert to fraction form
    1,915,282.20/2,643,097.42 = 1,055,823.60/x
  3. Step 3: Cross multiply
    1,915,282.20x = 2,643,097.42 × 1,055,823.60
  4. Step 4: Simplify right side
    1,915,282.20x = 2,790,644,633,135.11
  5. Step 5: Solve for x
    x = 2,790,644,633,135.11/1,915,282.20
  6. Step 6: Final answer
    x = 1,457,040.97

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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.