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Finding the Fourth Proportional to 892,611.94, 1,339,144.48 and 413,185.32

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Solution

The fourth proportional to 892,611.94, 1,339,144.48 and 413,185.32 is: 619,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,611.94 : 1,339,144.48 = 413,185.32 : x
  2. Step 2: Convert to fraction form
    892,611.94/1,339,144.48 = 413,185.32/x
  3. Step 3: Cross multiply
    892,611.94x = 1,339,144.48 × 413,185.32
  4. Step 4: Simplify right side
    892,611.94x = 553,314,840,495.03
  5. Step 5: Solve for x
    x = 553,314,840,495.03/892,611.94
  6. Step 6: Final answer
    x = 619,882.86

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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.