Finding the Fourth Proportional to 3,384,403.20, 5,074,971.36 and 1,964,816.64
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Solution
The fourth proportional to 3,384,403.20, 5,074,971.36 and 1,964,816.64 is: 2,946,276.67
Step by Step Solution
- Step 1: Write the proportion equation
3,384,403.20 : 5,074,971.36 = 1,964,816.64 : x - Step 2: Convert to fraction form
3,384,403.20/5,074,971.36 = 1,964,816.64/x - Step 3: Cross multiply
3,384,403.20x = 5,074,971.36 × 1,964,816.64 - Step 4: Simplify right side
3,384,403.20x = 9,971,388,175,651.43 - Step 5: Solve for x
x = 9,971,388,175,651.43/3,384,403.20 - Step 6: Final answer
x = 2,946,276.67
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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.