Finding the Fourth Proportional to 874,406.10, 1,212,183.35 and 826,510.98
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Solution
The fourth proportional to 874,406.10, 1,212,183.35 and 826,510.98 is: 1,145,786.66
Step by Step Solution
- Step 1: Write the proportion equation
874,406.10 : 1,212,183.35 = 826,510.98 : x - Step 2: Convert to fraction form
874,406.10/1,212,183.35 = 826,510.98/x - Step 3: Cross multiply
874,406.10x = 1,212,183.35 × 826,510.98 - Step 4: Simplify right side
874,406.10x = 1,001,882,844,415.63 - Step 5: Solve for x
x = 1,001,882,844,415.63/874,406.10 - Step 6: Final answer
x = 1,145,786.66
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.