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Finding the Fourth Proportional to 891,796.34, 1,230,524.78 and 504,629.30

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Solution

The fourth proportional to 891,796.34, 1,230,524.78 and 504,629.30 is: 696,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,796.34 : 1,230,524.78 = 504,629.30 : x
  2. Step 2: Convert to fraction form
    891,796.34/1,230,524.78 = 504,629.30/x
  3. Step 3: Cross multiply
    891,796.34x = 1,230,524.78 × 504,629.30
  4. Step 4: Simplify right side
    891,796.34x = 620,958,858,364.05
  5. Step 5: Solve for x
    x = 620,958,858,364.05/891,796.34
  6. Step 6: Final answer
    x = 696,301.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.