Home / 1,288,615.34-1,778,185.47-744,786.36

Finding the Fourth Proportional to 1,288,615.34, 1,778,185.47 and 744,786.36

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Solution

The fourth proportional to 1,288,615.34, 1,778,185.47 and 744,786.36 is: 1,027,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,615.34 : 1,778,185.47 = 744,786.36 : x
  2. Step 2: Convert to fraction form
    1,288,615.34/1,778,185.47 = 744,786.36/x
  3. Step 3: Cross multiply
    1,288,615.34x = 1,778,185.47 × 744,786.36
  4. Step 4: Simplify right side
    1,288,615.34x = 1,324,368,283,606.19
  5. Step 5: Solve for x
    x = 1,324,368,283,606.19/1,288,615.34
  6. Step 6: Final answer
    x = 1,027,745.24

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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.