Finding the Fourth Proportional to 682,429.09, 1,021,544.11 and 445,261.09
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Solution
The fourth proportional to 682,429.09, 1,021,544.11 and 445,261.09 is: 666,521.77
Step by Step Solution
- Step 1: Write the proportion equation
682,429.09 : 1,021,544.11 = 445,261.09 : x - Step 2: Convert to fraction form
682,429.09/1,021,544.11 = 445,261.09/x - Step 3: Cross multiply
682,429.09x = 1,021,544.11 × 445,261.09 - Step 4: Simplify right side
682,429.09x = 454,853,843,901.68 - Step 5: Solve for x
x = 454,853,843,901.68/682,429.09 - Step 6: Final answer
x = 666,521.77
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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.