Finding the Fourth Proportional to 378,797.63, 565,740.12 and 343,187.79
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Solution
The fourth proportional to 378,797.63, 565,740.12 and 343,187.79 is: 512,556.28
Step by Step Solution
- Step 1: Write the proportion equation
378,797.63 : 565,740.12 = 343,187.79 : x - Step 2: Convert to fraction form
378,797.63/565,740.12 = 343,187.79/x - Step 3: Cross multiply
378,797.63x = 565,740.12 × 343,187.79 - Step 4: Simplify right side
378,797.63x = 194,155,101,497.14 - Step 5: Solve for x
x = 194,155,101,497.14/378,797.63 - Step 6: Final answer
x = 512,556.28
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.