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Finding the Fourth Proportional to 491,450.75, 677,941.92 and 338,222.93

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Solution

The fourth proportional to 491,450.75, 677,941.92 and 338,222.93 is: 466,568.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,450.75 : 677,941.92 = 338,222.93 : x
  2. Step 2: Convert to fraction form
    491,450.75/677,941.92 = 338,222.93/x
  3. Step 3: Cross multiply
    491,450.75x = 677,941.92 × 338,222.93
  4. Step 4: Simplify right side
    491,450.75x = 229,295,499,162.52
  5. Step 5: Solve for x
    x = 229,295,499,162.52/491,450.75
  6. Step 6: Final answer
    x = 466,568.62

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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.