Home / 2,021,172.88-2,789,145.48-1,115,735.44

Finding the Fourth Proportional to 2,021,172.88, 2,789,145.48 and 1,115,735.44

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Solution

The fourth proportional to 2,021,172.88, 2,789,145.48 and 1,115,735.44 is: 1,539,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,172.88 : 2,789,145.48 = 1,115,735.44 : x
  2. Step 2: Convert to fraction form
    2,021,172.88/2,789,145.48 = 1,115,735.44/x
  3. Step 3: Cross multiply
    2,021,172.88x = 2,789,145.48 × 1,115,735.44
  4. Step 4: Simplify right side
    2,021,172.88x = 3,111,948,459,351.81
  5. Step 5: Solve for x
    x = 3,111,948,459,351.81/2,021,172.88
  6. Step 6: Final answer
    x = 1,539,674.56

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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.