Finding the Fourth Proportional to 716,578.84, 1,075,283.66 and 361,620.60
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Solution
The fourth proportional to 716,578.84, 1,075,283.66 and 361,620.60 is: 542,640.53
Step by Step Solution
- Step 1: Write the proportion equation
716,578.84 : 1,075,283.66 = 361,620.60 : x - Step 2: Convert to fraction form
716,578.84/1,075,283.66 = 361,620.60/x - Step 3: Cross multiply
716,578.84x = 1,075,283.66 × 361,620.60 - Step 4: Simplify right side
716,578.84x = 388,844,722,299.40 - Step 5: Solve for x
x = 388,844,722,299.40/716,578.84 - Step 6: Final answer
x = 542,640.53
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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.