Home / 2,131,591.20-3,196,220.40-867,991.20

Finding the Fourth Proportional to 2,131,591.20, 3,196,220.40 and 867,991.20

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Solution

The fourth proportional to 2,131,591.20, 3,196,220.40 and 867,991.20 is: 1,301,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,591.20 : 3,196,220.40 = 867,991.20 : x
  2. Step 2: Convert to fraction form
    2,131,591.20/3,196,220.40 = 867,991.20/x
  3. Step 3: Cross multiply
    2,131,591.20x = 3,196,220.40 × 867,991.20
  4. Step 4: Simplify right side
    2,131,591.20x = 2,774,291,180,460.48
  5. Step 5: Solve for x
    x = 2,774,291,180,460.48/2,131,591.20
  6. Step 6: Final answer
    x = 1,301,511.84

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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.