Home / 1,821,594.80-2,728,018.20-978,287.60

Finding the Fourth Proportional to 1,821,594.80, 2,728,018.20 and 978,287.60

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Solution

The fourth proportional to 1,821,594.80, 2,728,018.20 and 978,287.60 is: 1,465,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,594.80 : 2,728,018.20 = 978,287.60 : x
  2. Step 2: Convert to fraction form
    1,821,594.80/2,728,018.20 = 978,287.60/x
  3. Step 3: Cross multiply
    1,821,594.80x = 2,728,018.20 × 978,287.60
  4. Step 4: Simplify right side
    1,821,594.80x = 2,668,786,377,634.32
  5. Step 5: Solve for x
    x = 2,668,786,377,634.32/1,821,594.80
  6. Step 6: Final answer
    x = 1,465,082.34

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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.