Finding the Fourth Proportional to 790,326.18, 1,090,640.70 and 427,741.43
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Solution
The fourth proportional to 790,326.18, 1,090,640.70 and 427,741.43 is: 590,278.06
Step by Step Solution
- Step 1: Write the proportion equation
790,326.18 : 1,090,640.70 = 427,741.43 : x - Step 2: Convert to fraction form
790,326.18/1,090,640.70 = 427,741.43/x - Step 3: Cross multiply
790,326.18x = 1,090,640.70 × 427,741.43 - Step 4: Simplify right side
790,326.18x = 466,512,207,181.00 - Step 5: Solve for x
x = 466,512,207,181.00/790,326.18 - Step 6: Final answer
x = 590,278.06
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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.