Finding the Fourth Proportional to 665,107.80, 996,981.30 and 327,629.40
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Solution
The fourth proportional to 665,107.80, 996,981.30 and 327,629.40 is: 491,108.94
Step by Step Solution
- Step 1: Write the proportion equation
665,107.80 : 996,981.30 = 327,629.40 : x - Step 2: Convert to fraction form
665,107.80/996,981.30 = 327,629.40/x - Step 3: Cross multiply
665,107.80x = 996,981.30 × 327,629.40 - Step 4: Simplify right side
665,107.80x = 326,640,385,130.22 - Step 5: Solve for x
x = 326,640,385,130.22/665,107.80 - Step 6: Final answer
x = 491,108.94
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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.