Home / 1,131,968.15-1,562,992.86-869,908.36

Finding the Fourth Proportional to 1,131,968.15, 1,562,992.86 and 869,908.36

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Solution

The fourth proportional to 1,131,968.15, 1,562,992.86 and 869,908.36 is: 1,201,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,968.15 : 1,562,992.86 = 869,908.36 : x
  2. Step 2: Convert to fraction form
    1,131,968.15/1,562,992.86 = 869,908.36/x
  3. Step 3: Cross multiply
    1,131,968.15x = 1,562,992.86 × 869,908.36
  4. Step 4: Simplify right side
    1,131,968.15x = 1,359,660,555,534.31
  5. Step 5: Solve for x
    x = 1,359,660,555,534.31/1,131,968.15
  6. Step 6: Final answer
    x = 1,201,147.36

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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.