Home / 1,916,969.42-2,644,245.60-1,228,409.48

Finding the Fourth Proportional to 1,916,969.42, 2,644,245.60 and 1,228,409.48

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Solution

The fourth proportional to 1,916,969.42, 2,644,245.60 and 1,228,409.48 is: 1,694,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,969.42 : 2,644,245.60 = 1,228,409.48 : x
  2. Step 2: Convert to fraction form
    1,916,969.42/2,644,245.60 = 1,228,409.48/x
  3. Step 3: Cross multiply
    1,916,969.42x = 2,644,245.60 × 1,228,409.48
  4. Step 4: Simplify right side
    1,916,969.42x = 3,248,216,362,488.29
  5. Step 5: Solve for x
    x = 3,248,216,362,488.29/1,916,969.42
  6. Step 6: Final answer
    x = 1,694,453.93

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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.