Home / 1,179,213.36-1,768,912.38-421,218.60

Finding the Fourth Proportional to 1,179,213.36, 1,768,912.38 and 421,218.60

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Solution

The fourth proportional to 1,179,213.36, 1,768,912.38 and 421,218.60 is: 631,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,213.36 : 1,768,912.38 = 421,218.60 : x
  2. Step 2: Convert to fraction form
    1,179,213.36/1,768,912.38 = 421,218.60/x
  3. Step 3: Cross multiply
    1,179,213.36x = 1,768,912.38 × 421,218.60
  4. Step 4: Simplify right side
    1,179,213.36x = 745,098,796,226.27
  5. Step 5: Solve for x
    x = 745,098,796,226.27/1,179,213.36
  6. Step 6: Final answer
    x = 631,860.88

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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.