Finding the Fourth Proportional to 823,711.46, 1,136,135.70 and 755,947.31
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Solution
The fourth proportional to 823,711.46, 1,136,135.70 and 755,947.31 is: 1,042,669.39
Step by Step Solution
- Step 1: Write the proportion equation
823,711.46 : 1,136,135.70 = 755,947.31 : x - Step 2: Convert to fraction form
823,711.46/1,136,135.70 = 755,947.31/x - Step 3: Cross multiply
823,711.46x = 1,136,135.70 × 755,947.31 - Step 4: Simplify right side
823,711.46x = 858,858,726,209.97 - Step 5: Solve for x
x = 858,858,726,209.97/823,711.46 - Step 6: Final answer
x = 1,042,669.39
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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.