Finding the Fourth Proportional to 643,122.96, 964,543.64 and 263,670.32
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Solution
The fourth proportional to 643,122.96, 964,543.64 and 263,670.32 is: 395,447.75
Step by Step Solution
- Step 1: Write the proportion equation
643,122.96 : 964,543.64 = 263,670.32 : x - Step 2: Convert to fraction form
643,122.96/964,543.64 = 263,670.32/x - Step 3: Cross multiply
643,122.96x = 964,543.64 × 263,670.32 - Step 4: Simplify right side
643,122.96x = 254,321,530,212.77 - Step 5: Solve for x
x = 254,321,530,212.77/643,122.96 - Step 6: Final answer
x = 395,447.75
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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.