Finding the Fourth Proportional to 659,431.26, 910,021.50 and 387,505.26
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Solution
The fourth proportional to 659,431.26, 910,021.50 and 387,505.26 is: 534,761.00
Step by Step Solution
- Step 1: Write the proportion equation
659,431.26 : 910,021.50 = 387,505.26 : x - Step 2: Convert to fraction form
659,431.26/910,021.50 = 387,505.26/x - Step 3: Cross multiply
659,431.26x = 910,021.50 × 387,505.26 - Step 4: Simplify right side
659,431.26x = 352,638,117,963.09 - Step 5: Solve for x
x = 352,638,117,963.09/659,431.26 - Step 6: Final answer
x = 534,761.00
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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.