Home / 1,289,030.58-1,778,912.64-881,986.14

Finding the Fourth Proportional to 1,289,030.58, 1,778,912.64 and 881,986.14

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Solution

The fourth proportional to 1,289,030.58, 1,778,912.64 and 881,986.14 is: 1,217,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,030.58 : 1,778,912.64 = 881,986.14 : x
  2. Step 2: Convert to fraction form
    1,289,030.58/1,778,912.64 = 881,986.14/x
  3. Step 3: Cross multiply
    1,289,030.58x = 1,778,912.64 × 881,986.14
  4. Step 4: Simplify right side
    1,289,030.58x = 1,568,976,292,750.81
  5. Step 5: Solve for x
    x = 1,568,976,292,750.81/1,289,030.58
  6. Step 6: Final answer
    x = 1,217,175.39

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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.