Home / 2,640,318.21-3,959,843.18-1,219,008.69

Finding the Fourth Proportional to 2,640,318.21, 3,959,843.18 and 1,219,008.69

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Solution

The fourth proportional to 2,640,318.21, 3,959,843.18 and 1,219,008.69 is: 1,828,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,318.21 : 3,959,843.18 = 1,219,008.69 : x
  2. Step 2: Convert to fraction form
    2,640,318.21/3,959,843.18 = 1,219,008.69/x
  3. Step 3: Cross multiply
    2,640,318.21x = 3,959,843.18 × 1,219,008.69
  4. Step 4: Simplify right side
    2,640,318.21x = 4,827,083,241,362.19
  5. Step 5: Solve for x
    x = 4,827,083,241,362.19/2,640,318.21
  6. Step 6: Final answer
    x = 1,828,220.26

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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.