Finding the Fourth Proportional to 721,959.75, 994,079.12 and 641,247.03
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Solution
The fourth proportional to 721,959.75, 994,079.12 and 641,247.03 is: 882,944.35
Step by Step Solution
- Step 1: Write the proportion equation
721,959.75 : 994,079.12 = 641,247.03 : x - Step 2: Convert to fraction form
721,959.75/994,079.12 = 641,247.03/x - Step 3: Cross multiply
721,959.75x = 994,079.12 × 641,247.03 - Step 4: Simplify right side
721,959.75x = 637,450,280,078.78 - Step 5: Solve for x
x = 637,450,280,078.78/721,959.75 - Step 6: Final answer
x = 882,944.35
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1.5x scale
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.