Finding the Fourth Proportional to 1,284,662.80, 1,772,705.36 and 711,595.92
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Solution
The fourth proportional to 1,284,662.80, 1,772,705.36 and 711,595.92 is: 981,930.75
Step by Step Solution
- Step 1: Write the proportion equation
1,284,662.80 : 1,772,705.36 = 711,595.92 : x - Step 2: Convert to fraction form
1,284,662.80/1,772,705.36 = 711,595.92/x - Step 3: Cross multiply
1,284,662.80x = 1,772,705.36 × 711,595.92 - Step 4: Simplify right side
1,284,662.80x = 1,261,449,901,538.13 - Step 5: Solve for x
x = 1,261,449,901,538.13/1,284,662.80 - Step 6: Final answer
x = 981,930.75
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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.