Finding the Fourth Proportional to 1,284,172.08, 1,772,156.70 and 711,211.68
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Solution
The fourth proportional to 1,284,172.08, 1,772,156.70 and 711,211.68 is: 981,471.69
Step by Step Solution
- Step 1: Write the proportion equation
1,284,172.08 : 1,772,156.70 = 711,211.68 : x - Step 2: Convert to fraction form
1,284,172.08/1,772,156.70 = 711,211.68/x - Step 3: Cross multiply
1,284,172.08x = 1,772,156.70 × 711,211.68 - Step 4: Simplify right side
1,284,172.08x = 1,260,378,543,830.26 - Step 5: Solve for x
x = 1,260,378,543,830.26/1,284,172.08 - Step 6: Final answer
x = 981,471.69
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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.