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Finding the Fourth Proportional to 664,014.60, 996,540.30 and 309,072.60

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Solution

The fourth proportional to 664,014.60, 996,540.30 and 309,072.60 is: 463,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,014.60 : 996,540.30 = 309,072.60 : x
  2. Step 2: Convert to fraction form
    664,014.60/996,540.30 = 309,072.60/x
  3. Step 3: Cross multiply
    664,014.60x = 996,540.30 × 309,072.60
  4. Step 4: Simplify right side
    664,014.60x = 308,003,301,525.78
  5. Step 5: Solve for x
    x = 308,003,301,525.78/664,014.60
  6. Step 6: Final answer
    x = 463,850.19

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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.