Finding the Fourth Proportional to 892,839.92, 1,232,128.14 and 484,945.70
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Solution
The fourth proportional to 892,839.92, 1,232,128.14 and 484,945.70 is: 669,229.98
Step by Step Solution
- Step 1: Write the proportion equation
892,839.92 : 1,232,128.14 = 484,945.70 : x - Step 2: Convert to fraction form
892,839.92/1,232,128.14 = 484,945.70/x - Step 3: Cross multiply
892,839.92x = 1,232,128.14 × 484,945.70 - Step 4: Simplify right side
892,839.92x = 597,515,243,342.00 - Step 5: Solve for x
x = 597,515,243,342.00/892,839.92 - Step 6: Final answer
x = 669,229.98
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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.