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Finding the Fourth Proportional to 664,080.80, 994,933.20 and 403,944.80

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Solution

The fourth proportional to 664,080.80, 994,933.20 and 403,944.80 is: 605,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,080.80 : 994,933.20 = 403,944.80 : x
  2. Step 2: Convert to fraction form
    664,080.80/994,933.20 = 403,944.80/x
  3. Step 3: Cross multiply
    664,080.80x = 994,933.20 × 403,944.80
  4. Step 4: Simplify right side
    664,080.80x = 401,898,092,487.36
  5. Step 5: Solve for x
    x = 401,898,092,487.36/664,080.80
  6. Step 6: Final answer
    x = 605,194.57

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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.