Home / 1,101,420.46-1,519,986.44-618,021.36

Finding the Fourth Proportional to 1,101,420.46, 1,519,986.44 and 618,021.36

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Solution

The fourth proportional to 1,101,420.46, 1,519,986.44 and 618,021.36 is: 852,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,420.46 : 1,519,986.44 = 618,021.36 : x
  2. Step 2: Convert to fraction form
    1,101,420.46/1,519,986.44 = 618,021.36/x
  3. Step 3: Cross multiply
    1,101,420.46x = 1,519,986.44 × 618,021.36
  4. Step 4: Simplify right side
    1,101,420.46x = 939,384,086,057.83
  5. Step 5: Solve for x
    x = 939,384,086,057.83/1,101,420.46
  6. Step 6: Final answer
    x = 852,884.18

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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.