Finding the Fourth Proportional to 531,261.21, 733,135.85 and 289,543.75
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Solution
The fourth proportional to 531,261.21, 733,135.85 and 289,543.75 is: 399,567.86
Step by Step Solution
- Step 1: Write the proportion equation
531,261.21 : 733,135.85 = 289,543.75 : x - Step 2: Convert to fraction form
531,261.21/733,135.85 = 289,543.75/x - Step 3: Cross multiply
531,261.21x = 733,135.85 × 289,543.75 - Step 4: Simplify right side
531,261.21x = 212,274,903,268.44 - Step 5: Solve for x
x = 212,274,903,268.44/531,261.21 - Step 6: Final answer
x = 399,567.86
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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.