Finding the Fourth Proportional to 819,874.96, 1,230,186.10 and 420,795.98
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Solution
The fourth proportional to 819,874.96, 1,230,186.10 and 420,795.98 is: 631,385.75
Step by Step Solution
- Step 1: Write the proportion equation
819,874.96 : 1,230,186.10 = 420,795.98 : x - Step 2: Convert to fraction form
819,874.96/1,230,186.10 = 420,795.98/x - Step 3: Cross multiply
819,874.96x = 1,230,186.10 × 420,795.98 - Step 4: Simplify right side
819,874.96x = 517,657,365,531.88 - Step 5: Solve for x
x = 517,657,365,531.88/819,874.96 - Step 6: Final answer
x = 631,385.75
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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.