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Finding the Fourth Proportional to 664,014.60, 994,709.70 and 363,958.20

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Solution

The fourth proportional to 664,014.60, 994,709.70 and 363,958.20 is: 545,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,014.60 : 994,709.70 = 363,958.20 : x
  2. Step 2: Convert to fraction form
    664,014.60/994,709.70 = 363,958.20/x
  3. Step 3: Cross multiply
    664,014.60x = 994,709.70 × 363,958.20
  4. Step 4: Simplify right side
    664,014.60x = 362,032,751,934.54
  5. Step 5: Solve for x
    x = 362,032,751,934.54/664,014.60
  6. Step 6: Final answer
    x = 545,218.06

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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.