Home / 1,978,041.06-2,967,122.07-681,179.49

Finding the Fourth Proportional to 1,978,041.06, 2,967,122.07 and 681,179.49

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Solution

The fourth proportional to 1,978,041.06, 2,967,122.07 and 681,179.49 is: 1,021,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,041.06 : 2,967,122.07 = 681,179.49 : x
  2. Step 2: Convert to fraction form
    1,978,041.06/2,967,122.07 = 681,179.49/x
  3. Step 3: Cross multiply
    1,978,041.06x = 2,967,122.07 × 681,179.49
  4. Step 4: Simplify right side
    1,978,041.06x = 2,021,142,698,410.34
  5. Step 5: Solve for x
    x = 2,021,142,698,410.34/1,978,041.06
  6. Step 6: Final answer
    x = 1,021,790.06

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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.