Home / 1,616,138.64-2,230,230.32-890,969.60

Finding the Fourth Proportional to 1,616,138.64, 2,230,230.32 and 890,969.60

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Solution

The fourth proportional to 1,616,138.64, 2,230,230.32 and 890,969.60 is: 1,229,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,138.64 : 2,230,230.32 = 890,969.60 : x
  2. Step 2: Convert to fraction form
    1,616,138.64/2,230,230.32 = 890,969.60/x
  3. Step 3: Cross multiply
    1,616,138.64x = 2,230,230.32 × 890,969.60
  4. Step 4: Simplify right side
    1,616,138.64x = 1,987,067,416,118.27
  5. Step 5: Solve for x
    x = 1,987,067,416,118.27/1,616,138.64
  6. Step 6: Final answer
    x = 1,229,515.44

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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.