Home / 1,131,996.36-1,562,013.18-765,271.56

Finding the Fourth Proportional to 1,131,996.36, 1,562,013.18 and 765,271.56

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Solution

The fourth proportional to 1,131,996.36, 1,562,013.18 and 765,271.56 is: 1,055,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,996.36 : 1,562,013.18 = 765,271.56 : x
  2. Step 2: Convert to fraction form
    1,131,996.36/1,562,013.18 = 765,271.56/x
  3. Step 3: Cross multiply
    1,131,996.36x = 1,562,013.18 × 765,271.56
  4. Step 4: Simplify right side
    1,131,996.36x = 1,195,364,262,999.16
  5. Step 5: Solve for x
    x = 1,195,364,262,999.16/1,131,996.36
  6. Step 6: Final answer
    x = 1,055,978.89

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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.