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Finding the Fourth Proportional to 800,670.30, 1,200,327.18 and 351,050.44

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Solution

The fourth proportional to 800,670.30, 1,200,327.18 and 351,050.44 is: 526,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,670.30 : 1,200,327.18 = 351,050.44 : x
  2. Step 2: Convert to fraction form
    800,670.30/1,200,327.18 = 351,050.44/x
  3. Step 3: Cross multiply
    800,670.30x = 1,200,327.18 × 351,050.44
  4. Step 4: Simplify right side
    800,670.30x = 421,375,384,682.96
  5. Step 5: Solve for x
    x = 421,375,384,682.96/800,670.30
  6. Step 6: Final answer
    x = 526,278.28

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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.