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Finding the Fourth Proportional to 667,599.44, 921,324.12 and 381,211.52

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Solution

The fourth proportional to 667,599.44, 921,324.12 and 381,211.52 is: 526,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,599.44 : 921,324.12 = 381,211.52 : x
  2. Step 2: Convert to fraction form
    667,599.44/921,324.12 = 381,211.52/x
  3. Step 3: Cross multiply
    667,599.44x = 921,324.12 × 381,211.52
  4. Step 4: Simplify right side
    667,599.44x = 351,219,368,197.86
  5. Step 5: Solve for x
    x = 351,219,368,197.86/667,599.44
  6. Step 6: Final answer
    x = 526,092.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.