Finding the Fourth Proportional to 1,202,456.14, 1,659,416.29 and 686,199.74
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Solution
The fourth proportional to 1,202,456.14, 1,659,416.29 and 686,199.74 is: 946,970.94
Step by Step Solution
- Step 1: Write the proportion equation
1,202,456.14 : 1,659,416.29 = 686,199.74 : x - Step 2: Convert to fraction form
1,202,456.14/1,659,416.29 = 686,199.74/x - Step 3: Cross multiply
1,202,456.14x = 1,659,416.29 × 686,199.74 - Step 4: Simplify right side
1,202,456.14x = 1,138,691,016,737.18 - Step 5: Solve for x
x = 1,138,691,016,737.18/1,202,456.14 - Step 6: Final answer
x = 946,970.94
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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.