Finding the Fourth Proportional to 819,117.60, 1,228,408.94 and 271,862.98
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Solution
The fourth proportional to 819,117.60, 1,228,408.94 and 271,862.98 is: 407,705.70
Step by Step Solution
- Step 1: Write the proportion equation
819,117.60 : 1,228,408.94 = 271,862.98 : x - Step 2: Convert to fraction form
819,117.60/1,228,408.94 = 271,862.98/x - Step 3: Cross multiply
819,117.60x = 1,228,408.94 × 271,862.98 - Step 4: Simplify right side
819,117.60x = 333,958,915,087.04 - Step 5: Solve for x
x = 333,958,915,087.04/819,117.60 - Step 6: Final answer
x = 407,705.70
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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.