Home / 1,346,645.70-2,019,968.55-1,222,642.80

Finding the Fourth Proportional to 1,346,645.70, 2,019,968.55 and 1,222,642.80

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Solution

The fourth proportional to 1,346,645.70, 2,019,968.55 and 1,222,642.80 is: 1,833,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,645.70 : 2,019,968.55 = 1,222,642.80 : x
  2. Step 2: Convert to fraction form
    1,346,645.70/2,019,968.55 = 1,222,642.80/x
  3. Step 3: Cross multiply
    1,346,645.70x = 2,019,968.55 × 1,222,642.80
  4. Step 4: Simplify right side
    1,346,645.70x = 2,469,700,003,883.94
  5. Step 5: Solve for x
    x = 2,469,700,003,883.94/1,346,645.70
  6. Step 6: Final answer
    x = 1,833,964.20

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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.