Home / 2,754,485.40-4,131,728.10-861,418.20

Finding the Fourth Proportional to 2,754,485.40, 4,131,728.10 and 861,418.20

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Solution

The fourth proportional to 2,754,485.40, 4,131,728.10 and 861,418.20 is: 1,292,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754,485.40 : 4,131,728.10 = 861,418.20 : x
  2. Step 2: Convert to fraction form
    2,754,485.40/4,131,728.10 = 861,418.20/x
  3. Step 3: Cross multiply
    2,754,485.40x = 4,131,728.10 × 861,418.20
  4. Step 4: Simplify right side
    2,754,485.40x = 3,559,145,782,791.42
  5. Step 5: Solve for x
    x = 3,559,145,782,791.42/2,754,485.40
  6. Step 6: Final answer
    x = 1,292,127.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.