Finding the Fourth Proportional to 673,021.36, 1,007,162.37 and 420,420.81
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Solution
The fourth proportional to 673,021.36, 1,007,162.37 and 420,420.81 is: 629,150.94
Step by Step Solution
- Step 1: Write the proportion equation
673,021.36 : 1,007,162.37 = 420,420.81 : x - Step 2: Convert to fraction form
673,021.36/1,007,162.37 = 420,420.81/x - Step 3: Cross multiply
673,021.36x = 1,007,162.37 × 420,420.81 - Step 4: Simplify right side
673,021.36x = 423,432,019,396.92 - Step 5: Solve for x
x = 423,432,019,396.92/673,021.36 - Step 6: Final answer
x = 629,150.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.