Home / 2,188,342.44-3,019,969.38-1,221,467.88

Finding the Fourth Proportional to 2,188,342.44, 3,019,969.38 and 1,221,467.88

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Solution

The fourth proportional to 2,188,342.44, 3,019,969.38 and 1,221,467.88 is: 1,685,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,342.44 : 3,019,969.38 = 1,221,467.88 : x
  2. Step 2: Convert to fraction form
    2,188,342.44/3,019,969.38 = 1,221,467.88/x
  3. Step 3: Cross multiply
    2,188,342.44x = 3,019,969.38 × 1,221,467.88
  4. Step 4: Simplify right side
    2,188,342.44x = 3,688,795,596,253.51
  5. Step 5: Solve for x
    x = 3,688,795,596,253.51/2,188,342.44
  6. Step 6: Final answer
    x = 1,685,657.39

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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.