Finding the Fourth Proportional to 742,414.08, 1,112,186.16 and 443,133.12
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Solution
The fourth proportional to 742,414.08, 1,112,186.16 and 443,133.12 is: 663,843.18
Step by Step Solution
- Step 1: Write the proportion equation
742,414.08 : 1,112,186.16 = 443,133.12 : x - Step 2: Convert to fraction form
742,414.08/1,112,186.16 = 443,133.12/x - Step 3: Cross multiply
742,414.08x = 1,112,186.16 × 443,133.12 - Step 4: Simplify right side
742,414.08x = 492,846,523,101.62 - Step 5: Solve for x
x = 492,846,523,101.62/742,414.08 - Step 6: Final answer
x = 663,843.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.