Home / 1,679,811.40-2,519,717.10-1,081,448.20

Finding the Fourth Proportional to 1,679,811.40, 2,519,717.10 and 1,081,448.20

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Solution

The fourth proportional to 1,679,811.40, 2,519,717.10 and 1,081,448.20 is: 1,622,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,811.40 : 2,519,717.10 = 1,081,448.20 : x
  2. Step 2: Convert to fraction form
    1,679,811.40/2,519,717.10 = 1,081,448.20/x
  3. Step 3: Cross multiply
    1,679,811.40x = 2,519,717.10 × 1,081,448.20
  4. Step 4: Simplify right side
    1,679,811.40x = 2,724,943,522,304.22
  5. Step 5: Solve for x
    x = 2,724,943,522,304.22/1,679,811.40
  6. Step 6: Final answer
    x = 1,622,172.30

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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.