Finding the Fourth Proportional to 680,591.24, 1,021,518.40 and 343,868.44
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Solution
The fourth proportional to 680,591.24, 1,021,518.40 and 343,868.44 is: 516,121.75
Step by Step Solution
- Step 1: Write the proportion equation
680,591.24 : 1,021,518.40 = 343,868.44 : x - Step 2: Convert to fraction form
680,591.24/1,021,518.40 = 343,868.44/x - Step 3: Cross multiply
680,591.24x = 1,021,518.40 × 343,868.44 - Step 4: Simplify right side
680,591.24x = 351,267,938,639.30 - Step 5: Solve for x
x = 351,267,938,639.30/680,591.24 - Step 6: Final answer
x = 516,121.75
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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.