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Finding the Fourth Proportional to 455,863.90, 682,811.70 and 296,431.60

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Solution

The fourth proportional to 455,863.90, 682,811.70 and 296,431.60 is: 444,007.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,863.90 : 682,811.70 = 296,431.60 : x
  2. Step 2: Convert to fraction form
    455,863.90/682,811.70 = 296,431.60/x
  3. Step 3: Cross multiply
    455,863.90x = 682,811.70 × 296,431.60
  4. Step 4: Simplify right side
    455,863.90x = 202,406,964,729.72
  5. Step 5: Solve for x
    x = 202,406,964,729.72/455,863.90
  6. Step 6: Final answer
    x = 444,007.44

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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.