Finding the Fourth Proportional to 1,284,212.18, 1,772,227.68 and 711,261.92
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Solution
The fourth proportional to 1,284,212.18, 1,772,227.68 and 711,261.92 is: 981,549.69
Step by Step Solution
- Step 1: Write the proportion equation
1,284,212.18 : 1,772,227.68 = 711,261.92 : x - Step 2: Convert to fraction form
1,284,212.18/1,772,227.68 = 711,261.92/x - Step 3: Cross multiply
1,284,212.18x = 1,772,227.68 × 711,261.92 - Step 4: Simplify right side
1,284,212.18x = 1,260,518,062,353.95 - Step 5: Solve for x
x = 1,260,518,062,353.95/1,284,212.18 - Step 6: Final answer
x = 981,549.69
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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.