Finding the Fourth Proportional to 1,284,509.36, 1,772,599.20 and 711,536.96
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Solution
The fourth proportional to 1,284,509.36, 1,772,599.20 and 711,536.96 is: 981,907.87
Step by Step Solution
- Step 1: Write the proportion equation
1,284,509.36 : 1,772,599.20 = 711,536.96 : x - Step 2: Convert to fraction form
1,284,509.36/1,772,599.20 = 711,536.96/x - Step 3: Cross multiply
1,284,509.36x = 1,772,599.20 × 711,536.96 - Step 4: Simplify right side
1,284,509.36x = 1,261,269,846,066.43 - Step 5: Solve for x
x = 1,261,269,846,066.43/1,284,509.36 - Step 6: Final answer
x = 981,907.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.