Home / 2,662,919.20-3,991,657.20-1,313,005.60

Finding the Fourth Proportional to 2,662,919.20, 3,991,657.20 and 1,313,005.60

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Solution

The fourth proportional to 2,662,919.20, 3,991,657.20 and 1,313,005.60 is: 1,968,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,919.20 : 3,991,657.20 = 1,313,005.60 : x
  2. Step 2: Convert to fraction form
    2,662,919.20/3,991,657.20 = 1,313,005.60/x
  3. Step 3: Cross multiply
    2,662,919.20x = 3,991,657.20 × 1,313,005.60
  4. Step 4: Simplify right side
    2,662,919.20x = 5,241,068,256,880.32
  5. Step 5: Solve for x
    x = 5,241,068,256,880.32/2,662,919.20
  6. Step 6: Final answer
    x = 1,968,166.46

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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.