Home / 1,988,211.78-2,743,809.93-1,128,852

Finding the Fourth Proportional to 1,988,211.78, 2,743,809.93 and 1,128,852

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Solution

The fourth proportional to 1,988,211.78, 2,743,809.93 and 1,128,852 is: 1,557,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,211.78 : 2,743,809.93 = 1,128,852 : x
  2. Step 2: Convert to fraction form
    1,988,211.78/2,743,809.93 = 1,128,852/x
  3. Step 3: Cross multiply
    1,988,211.78x = 2,743,809.93 × 1,128,852
  4. Step 4: Simplify right side
    1,988,211.78x = 3,097,355,327,100.36
  5. Step 5: Solve for x
    x = 3,097,355,327,100.36/1,988,211.78
  6. Step 6: Final answer
    x = 1,557,859.86

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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.