Finding the Fourth Proportional to 758,640.09, 1,137,193.35 and 326,639.33
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Solution
The fourth proportional to 758,640.09, 1,137,193.35 and 326,639.33 is: 489,628.85
Step by Step Solution
- Step 1: Write the proportion equation
758,640.09 : 1,137,193.35 = 326,639.33 : x - Step 2: Convert to fraction form
758,640.09/1,137,193.35 = 326,639.33/x - Step 3: Cross multiply
758,640.09x = 1,137,193.35 × 326,639.33 - Step 4: Simplify right side
758,640.09x = 371,452,075,542.54 - Step 5: Solve for x
x = 371,452,075,542.54/758,640.09 - Step 6: Final answer
x = 489,628.85
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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.