Finding the Fourth Proportional to 1,381,172.48, 1,906,199.68 and 777,678.08
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Solution
The fourth proportional to 1,381,172.48, 1,906,199.68 and 777,678.08 is: 1,073,298.03
Step by Step Solution
- Step 1: Write the proportion equation
1,381,172.48 : 1,906,199.68 = 777,678.08 : x - Step 2: Convert to fraction form
1,381,172.48/1,906,199.68 = 777,678.08/x - Step 3: Cross multiply
1,381,172.48x = 1,906,199.68 × 777,678.08 - Step 4: Simplify right side
1,381,172.48x = 1,482,409,707,239.01 - Step 5: Solve for x
x = 1,482,409,707,239.01/1,381,172.48 - Step 6: Final answer
x = 1,073,298.03
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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.