Finding the Fourth Proportional to 724,396.80, 1,087,310.34 and 543,854.28
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Solution
The fourth proportional to 724,396.80, 1,087,310.34 and 543,854.28 is: 816,318.32
Step by Step Solution
- Step 1: Write the proportion equation
724,396.80 : 1,087,310.34 = 543,854.28 : x - Step 2: Convert to fraction form
724,396.80/1,087,310.34 = 543,854.28/x - Step 3: Cross multiply
724,396.80x = 1,087,310.34 × 543,854.28 - Step 4: Simplify right side
724,396.80x = 591,338,382,097.26 - Step 5: Solve for x
x = 591,338,382,097.26/724,396.80 - Step 6: Final answer
x = 816,318.32
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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.