Finding the Fourth Proportional to 1,284,394.25, 1,772,464.20 and 711,471.53
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Solution
The fourth proportional to 1,284,394.25, 1,772,464.20 and 711,471.53 is: 981,830.79
Step by Step Solution
- Step 1: Write the proportion equation
1,284,394.25 : 1,772,464.20 = 711,471.53 : x - Step 2: Convert to fraction form
1,284,394.25/1,772,464.20 = 711,471.53/x - Step 3: Cross multiply
1,284,394.25x = 1,772,464.20 × 711,471.53 - Step 4: Simplify right side
1,284,394.25x = 1,261,057,816,244.23 - Step 5: Solve for x
x = 1,261,057,816,244.23/1,284,394.25 - Step 6: Final answer
x = 981,830.79
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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.