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Finding the Fourth Proportional to 893,844.60, 1,340,766.90 and 828,234.60

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Solution

The fourth proportional to 893,844.60, 1,340,766.90 and 828,234.60 is: 1,242,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,844.60 : 1,340,766.90 = 828,234.60 : x
  2. Step 2: Convert to fraction form
    893,844.60/1,340,766.90 = 828,234.60/x
  3. Step 3: Cross multiply
    893,844.60x = 1,340,766.90 × 828,234.60
  4. Step 4: Simplify right side
    893,844.60x = 1,110,469,537,114.74
  5. Step 5: Solve for x
    x = 1,110,469,537,114.74/893,844.60
  6. Step 6: Final answer
    x = 1,242,351.90

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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.