Home / 1,131,990.36-1,562,004.90-765,265.56

Finding the Fourth Proportional to 1,131,990.36, 1,562,004.90 and 765,265.56

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Solution

The fourth proportional to 1,131,990.36, 1,562,004.90 and 765,265.56 is: 1,055,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,990.36 : 1,562,004.90 = 765,265.56 : x
  2. Step 2: Convert to fraction form
    1,131,990.36/1,562,004.90 = 765,265.56/x
  3. Step 3: Cross multiply
    1,131,990.36x = 1,562,004.90 × 765,265.56
  4. Step 4: Simplify right side
    1,131,990.36x = 1,195,348,554,521.24
  5. Step 5: Solve for x
    x = 1,195,348,554,521.24/1,131,990.36
  6. Step 6: Final answer
    x = 1,055,970.61

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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.