Home / 1,371,198.48-1,892,028.96-861,540

Finding the Fourth Proportional to 1,371,198.48, 1,892,028.96 and 861,540

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Solution

The fourth proportional to 1,371,198.48, 1,892,028.96 and 861,540 is: 1,188,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,198.48 : 1,892,028.96 = 861,540 : x
  2. Step 2: Convert to fraction form
    1,371,198.48/1,892,028.96 = 861,540/x
  3. Step 3: Cross multiply
    1,371,198.48x = 1,892,028.96 × 861,540
  4. Step 4: Simplify right side
    1,371,198.48x = 1,630,058,630,198.40
  5. Step 5: Solve for x
    x = 1,630,058,630,198.40/1,371,198.48
  6. Step 6: Final answer
    x = 1,188,783.87

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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.