Home / 1,187,181.48-1,638,352.26-677,874.60

Finding the Fourth Proportional to 1,187,181.48, 1,638,352.26 and 677,874.60

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Solution

The fourth proportional to 1,187,181.48, 1,638,352.26 and 677,874.60 is: 935,490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,181.48 : 1,638,352.26 = 677,874.60 : x
  2. Step 2: Convert to fraction form
    1,187,181.48/1,638,352.26 = 677,874.60/x
  3. Step 3: Cross multiply
    1,187,181.48x = 1,638,352.26 × 677,874.60
  4. Step 4: Simplify right side
    1,187,181.48x = 1,110,597,382,906.60
  5. Step 5: Solve for x
    x = 1,110,597,382,906.60/1,187,181.48
  6. Step 6: Final answer
    x = 935,490.83

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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.