Finding the Fourth Proportional to 819,114.90, 1,228,344.30 and 286,361.70
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Solution
The fourth proportional to 819,114.90, 1,228,344.30 and 286,361.70 is: 429,427.86
Step by Step Solution
- Step 1: Write the proportion equation
819,114.90 : 1,228,344.30 = 286,361.70 : x - Step 2: Convert to fraction form
819,114.90/1,228,344.30 = 286,361.70/x - Step 3: Cross multiply
819,114.90x = 1,228,344.30 × 286,361.70 - Step 4: Simplify right side
819,114.90x = 351,750,761,933.31 - Step 5: Solve for x
x = 351,750,761,933.31/819,114.90 - Step 6: Final answer
x = 429,427.86
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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.