Home / 1,445,618.38-1,994,997.09-800,978.26

Finding the Fourth Proportional to 1,445,618.38, 1,994,997.09 and 800,978.26

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Solution

The fourth proportional to 1,445,618.38, 1,994,997.09 and 800,978.26 is: 1,105,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,618.38 : 1,994,997.09 = 800,978.26 : x
  2. Step 2: Convert to fraction form
    1,445,618.38/1,994,997.09 = 800,978.26/x
  3. Step 3: Cross multiply
    1,445,618.38x = 1,994,997.09 × 800,978.26
  4. Step 4: Simplify right side
    1,445,618.38x = 1,597,949,297,853.26
  5. Step 5: Solve for x
    x = 1,597,949,297,853.26/1,445,618.38
  6. Step 6: Final answer
    x = 1,105,374.23

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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.