Home / 2,998,830.78-4,138,489.80-1,640,703.78

Finding the Fourth Proportional to 2,998,830.78, 4,138,489.80 and 1,640,703.78

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Solution

The fourth proportional to 2,998,830.78, 4,138,489.80 and 1,640,703.78 is: 2,264,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998,830.78 : 4,138,489.80 = 1,640,703.78 : x
  2. Step 2: Convert to fraction form
    2,998,830.78/4,138,489.80 = 1,640,703.78/x
  3. Step 3: Cross multiply
    2,998,830.78x = 4,138,489.80 × 1,640,703.78
  4. Step 4: Simplify right side
    2,998,830.78x = 6,790,035,858,351.44
  5. Step 5: Solve for x
    x = 6,790,035,858,351.44/2,998,830.78
  6. Step 6: Final answer
    x = 2,264,227.75

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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.