Home / 1,978,074.40-2,729,744.16-1,072,656.16

Finding the Fourth Proportional to 1,978,074.40, 2,729,744.16 and 1,072,656.16

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Solution

The fourth proportional to 1,978,074.40, 2,729,744.16 and 1,072,656.16 is: 1,480,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,074.40 : 2,729,744.16 = 1,072,656.16 : x
  2. Step 2: Convert to fraction form
    1,978,074.40/2,729,744.16 = 1,072,656.16/x
  3. Step 3: Cross multiply
    1,978,074.40x = 2,729,744.16 × 1,072,656.16
  4. Step 4: Simplify right side
    1,978,074.40x = 2,928,076,888,448.03
  5. Step 5: Solve for x
    x = 2,928,076,888,448.03/1,978,074.40
  6. Step 6: Final answer
    x = 1,480,266.31

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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.