Home / 2,662,080.90-3,993,121.35-978,965.70

Finding the Fourth Proportional to 2,662,080.90, 3,993,121.35 and 978,965.70

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Solution

The fourth proportional to 2,662,080.90, 3,993,121.35 and 978,965.70 is: 1,468,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,080.90 : 3,993,121.35 = 978,965.70 : x
  2. Step 2: Convert to fraction form
    2,662,080.90/3,993,121.35 = 978,965.70/x
  3. Step 3: Cross multiply
    2,662,080.90x = 3,993,121.35 × 978,965.70
  4. Step 4: Simplify right side
    2,662,080.90x = 3,909,128,837,587.70
  5. Step 5: Solve for x
    x = 3,909,128,837,587.70/2,662,080.90
  6. Step 6: Final answer
    x = 1,468,448.55

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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.