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Finding the Fourth Proportional to 893,896.80, 1,340,715.60 and 262,744.80

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Solution

The fourth proportional to 893,896.80, 1,340,715.60 and 262,744.80 is: 394,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,896.80 : 1,340,715.60 = 262,744.80 : x
  2. Step 2: Convert to fraction form
    893,896.80/1,340,715.60 = 262,744.80/x
  3. Step 3: Cross multiply
    893,896.80x = 1,340,715.60 × 262,744.80
  4. Step 4: Simplify right side
    893,896.80x = 352,266,052,178.88
  5. Step 5: Solve for x
    x = 352,266,052,178.88/893,896.80
  6. Step 6: Final answer
    x = 394,079.11

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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.