Finding the Fourth Proportional to 790,516.21, 1,090,911.14 and 427,939.97
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Solution
The fourth proportional to 790,516.21, 1,090,911.14 and 427,939.97 is: 590,556.50
Step by Step Solution
- Step 1: Write the proportion equation
790,516.21 : 1,090,911.14 = 427,939.97 : x - Step 2: Convert to fraction form
790,516.21/1,090,911.14 = 427,939.97/x - Step 3: Cross multiply
790,516.21x = 1,090,911.14 × 427,939.97 - Step 4: Simplify right side
790,516.21x = 466,844,482,205.25 - Step 5: Solve for x
x = 466,844,482,205.25/790,516.21 - Step 6: Final answer
x = 590,556.50
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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.