Home / 2,187,078.30-3,281,601.60-988,383.60

Finding the Fourth Proportional to 2,187,078.30, 3,281,601.60 and 988,383.60

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Solution

The fourth proportional to 2,187,078.30, 3,281,601.60 and 988,383.60 is: 1,483,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,078.30 : 3,281,601.60 = 988,383.60 : x
  2. Step 2: Convert to fraction form
    2,187,078.30/3,281,601.60 = 988,383.60/x
  3. Step 3: Cross multiply
    2,187,078.30x = 3,281,601.60 × 988,383.60
  4. Step 4: Simplify right side
    2,187,078.30x = 3,243,481,203,173.76
  5. Step 5: Solve for x
    x = 3,243,481,203,173.76/2,187,078.30
  6. Step 6: Final answer
    x = 1,483,020.16

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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.