Home / 1,419,973.64-2,128,382.72-1,081,899.69

Finding the Fourth Proportional to 1,419,973.64, 2,128,382.72 and 1,081,899.69

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Solution

The fourth proportional to 1,419,973.64, 2,128,382.72 and 1,081,899.69 is: 1,621,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,973.64 : 2,128,382.72 = 1,081,899.69 : x
  2. Step 2: Convert to fraction form
    1,419,973.64/2,128,382.72 = 1,081,899.69/x
  3. Step 3: Cross multiply
    1,419,973.64x = 2,128,382.72 × 1,081,899.69
  4. Step 4: Simplify right side
    1,419,973.64x = 2,302,696,604,969.36
  5. Step 5: Solve for x
    x = 2,302,696,604,969.36/1,419,973.64
  6. Step 6: Final answer
    x = 1,621,647.43

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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.