Finding the Fourth Proportional to 1,511,242.72, 2,085,530.16 and 832,181.92
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Solution
The fourth proportional to 1,511,242.72, 2,085,530.16 and 832,181.92 is: 1,148,419.42
Step by Step Solution
- Step 1: Write the proportion equation
1,511,242.72 : 2,085,530.16 = 832,181.92 : x - Step 2: Convert to fraction form
1,511,242.72/2,085,530.16 = 832,181.92/x - Step 3: Cross multiply
1,511,242.72x = 2,085,530.16 × 832,181.92 - Step 4: Simplify right side
1,511,242.72x = 1,735,540,492,766.71 - Step 5: Solve for x
x = 1,735,540,492,766.71/1,511,242.72 - Step 6: Final answer
x = 1,148,419.42
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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.