Home / 1,101,420.52-1,519,986.52-618,021.42

Finding the Fourth Proportional to 1,101,420.52, 1,519,986.52 and 618,021.42

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Solution

The fourth proportional to 1,101,420.52, 1,519,986.52 and 618,021.42 is: 852,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,420.52 : 1,519,986.52 = 618,021.42 : x
  2. Step 2: Convert to fraction form
    1,101,420.52/1,519,986.52 = 618,021.42/x
  3. Step 3: Cross multiply
    1,101,420.52x = 1,519,986.52 × 618,021.42
  4. Step 4: Simplify right side
    1,101,420.52x = 939,384,227,471.26
  5. Step 5: Solve for x
    x = 939,384,227,471.26/1,101,420.52
  6. Step 6: Final answer
    x = 852,884.26

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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.