Finding the Fourth Proportional to 1,613,138.68, 2,226,181.56 and 878,141.90
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Solution
The fourth proportional to 1,613,138.68, 2,226,181.56 and 878,141.90 is: 1,211,863.14
Step by Step Solution
- Step 1: Write the proportion equation
1,613,138.68 : 2,226,181.56 = 878,141.90 : x - Step 2: Convert to fraction form
1,613,138.68/2,226,181.56 = 878,141.90/x - Step 3: Cross multiply
1,613,138.68x = 2,226,181.56 × 878,141.90 - Step 4: Simplify right side
1,613,138.68x = 1,954,903,304,843.36 - Step 5: Solve for x
x = 1,954,903,304,843.36/1,613,138.68 - Step 6: Final answer
x = 1,211,863.14
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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.