Finding the Fourth Proportional to 914,458.68, 1,261,973.25 and 521,983.62
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Solution
The fourth proportional to 914,458.68, 1,261,973.25 and 521,983.62 is: 720,348.97
Step by Step Solution
- Step 1: Write the proportion equation
914,458.68 : 1,261,973.25 = 521,983.62 : x - Step 2: Convert to fraction form
914,458.68/1,261,973.25 = 521,983.62/x - Step 3: Cross multiply
914,458.68x = 1,261,973.25 × 521,983.62 - Step 4: Simplify right side
914,458.68x = 658,729,365,378.17 - Step 5: Solve for x
x = 658,729,365,378.17/914,458.68 - Step 6: Final answer
x = 720,348.97
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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.