Home / 1,642,677.62-2,460,579.39-1,321,091.15

Finding the Fourth Proportional to 1,642,677.62, 2,460,579.39 and 1,321,091.15

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Solution

The fourth proportional to 1,642,677.62, 2,460,579.39 and 1,321,091.15 is: 1,978,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,677.62 : 2,460,579.39 = 1,321,091.15 : x
  2. Step 2: Convert to fraction form
    1,642,677.62/2,460,579.39 = 1,321,091.15/x
  3. Step 3: Cross multiply
    1,642,677.62x = 2,460,579.39 × 1,321,091.15
  4. Step 4: Simplify right side
    1,642,677.62x = 3,250,649,643,698.50
  5. Step 5: Solve for x
    x = 3,250,649,643,698.50/1,642,677.62
  6. Step 6: Final answer
    x = 1,978,872.55

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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.