Finding the Fourth Proportional to 990,422.26, 1,485,436.55 and 484,765.99
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Solution
The fourth proportional to 990,422.26, 1,485,436.55 and 484,765.99 is: 727,052.64
Step by Step Solution
- Step 1: Write the proportion equation
990,422.26 : 1,485,436.55 = 484,765.99 : x - Step 2: Convert to fraction form
990,422.26/1,485,436.55 = 484,765.99/x - Step 3: Cross multiply
990,422.26x = 1,485,436.55 × 484,765.99 - Step 4: Simplify right side
990,422.26x = 720,089,113,605.51 - Step 5: Solve for x
x = 720,089,113,605.51/990,422.26 - Step 6: Final answer
x = 727,052.64
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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.