Finding the Fourth Proportional to 529,476.80, 730,683.64 and 287,759.36
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Solution
The fourth proportional to 529,476.80, 730,683.64 and 287,759.36 is: 397,110.99
Step by Step Solution
- Step 1: Write the proportion equation
529,476.80 : 730,683.64 = 287,759.36 : x - Step 2: Convert to fraction form
529,476.80/730,683.64 = 287,759.36/x - Step 3: Cross multiply
529,476.80x = 730,683.64 × 287,759.36 - Step 4: Simplify right side
529,476.80x = 210,261,056,608.87 - Step 5: Solve for x
x = 210,261,056,608.87/529,476.80 - Step 6: Final answer
x = 397,110.99
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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.