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Finding the Fourth Proportional to 869,884.22, 1,305,014 and 262,622.12

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Solution

The fourth proportional to 869,884.22, 1,305,014 and 262,622.12 is: 393,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,884.22 : 1,305,014 = 262,622.12 : x
  2. Step 2: Convert to fraction form
    869,884.22/1,305,014 = 262,622.12/x
  3. Step 3: Cross multiply
    869,884.22x = 1,305,014 × 262,622.12
  4. Step 4: Simplify right side
    869,884.22x = 342,725,543,309.68
  5. Step 5: Solve for x
    x = 342,725,543,309.68/869,884.22
  6. Step 6: Final answer
    x = 393,989.84

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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.