Home / 2,190,643.10-3,285,964.65-1,245,859.10

Finding the Fourth Proportional to 2,190,643.10, 3,285,964.65 and 1,245,859.10

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Solution

The fourth proportional to 2,190,643.10, 3,285,964.65 and 1,245,859.10 is: 1,868,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,643.10 : 3,285,964.65 = 1,245,859.10 : x
  2. Step 2: Convert to fraction form
    2,190,643.10/3,285,964.65 = 1,245,859.10/x
  3. Step 3: Cross multiply
    2,190,643.10x = 3,285,964.65 × 1,245,859.10
  4. Step 4: Simplify right side
    2,190,643.10x = 4,093,848,961,480.82
  5. Step 5: Solve for x
    x = 4,093,848,961,480.82/2,190,643.10
  6. Step 6: Final answer
    x = 1,868,788.65

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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.