Home / 1,505,687.88-2,078,014.50-861,168.36

Finding the Fourth Proportional to 1,505,687.88, 2,078,014.50 and 861,168.36

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Solution

The fourth proportional to 1,505,687.88, 2,078,014.50 and 861,168.36 is: 1,188,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,687.88 : 2,078,014.50 = 861,168.36 : x
  2. Step 2: Convert to fraction form
    1,505,687.88/2,078,014.50 = 861,168.36/x
  3. Step 3: Cross multiply
    1,505,687.88x = 2,078,014.50 × 861,168.36
  4. Step 4: Simplify right side
    1,505,687.88x = 1,789,520,339,021.22
  5. Step 5: Solve for x
    x = 1,789,520,339,021.22/1,505,687.88
  6. Step 6: Final answer
    x = 1,188,506.84

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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.