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Finding the Fourth Proportional to 491,996.40, 737,994.60 and 448,450.80

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Solution

The fourth proportional to 491,996.40, 737,994.60 and 448,450.80 is: 672,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,996.40 : 737,994.60 = 448,450.80 : x
  2. Step 2: Convert to fraction form
    491,996.40/737,994.60 = 448,450.80/x
  3. Step 3: Cross multiply
    491,996.40x = 737,994.60 × 448,450.80
  4. Step 4: Simplify right side
    491,996.40x = 330,954,268,765.68
  5. Step 5: Solve for x
    x = 330,954,268,765.68/491,996.40
  6. Step 6: Final answer
    x = 672,676.20

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1.5x scale

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.