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Finding the Fourth Proportional to 862,910.08, 1,294,368 and 263,868.80

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Solution

The fourth proportional to 862,910.08, 1,294,368 and 263,868.80 is: 395,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,910.08 : 1,294,368 = 263,868.80 : x
  2. Step 2: Convert to fraction form
    862,910.08/1,294,368 = 263,868.80/x
  3. Step 3: Cross multiply
    862,910.08x = 1,294,368 × 263,868.80
  4. Step 4: Simplify right side
    862,910.08x = 341,543,330,918.40
  5. Step 5: Solve for x
    x = 341,543,330,918.40/862,910.08
  6. Step 6: Final answer
    x = 395,804.08

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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.