Home / 3,986,361.48-5,980,492.58-1,290,687.51

Finding the Fourth Proportional to 3,986,361.48, 5,980,492.58 and 1,290,687.51

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Solution

The fourth proportional to 3,986,361.48, 5,980,492.58 and 1,290,687.51 is: 1,936,338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,361.48 : 5,980,492.58 = 1,290,687.51 : x
  2. Step 2: Convert to fraction form
    3,986,361.48/5,980,492.58 = 1,290,687.51/x
  3. Step 3: Cross multiply
    3,986,361.48x = 5,980,492.58 × 1,290,687.51
  4. Step 4: Simplify right side
    3,986,361.48x = 7,718,947,076,653.68
  5. Step 5: Solve for x
    x = 7,718,947,076,653.68/3,986,361.48
  6. Step 6: Final answer
    x = 1,936,338.97

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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.