Finding the Fourth Proportional to 1,116,861.60, 1,676,134.38 and 818,107.68
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Solution
The fourth proportional to 1,116,861.60, 1,676,134.38 and 818,107.68 is: 1,227,778.28
Step by Step Solution
- Step 1: Write the proportion equation
1,116,861.60 : 1,676,134.38 = 818,107.68 : x - Step 2: Convert to fraction form
1,116,861.60/1,676,134.38 = 818,107.68/x - Step 3: Cross multiply
1,116,861.60x = 1,676,134.38 × 818,107.68 - Step 4: Simplify right side
1,116,861.60x = 1,371,258,408,990.04 - Step 5: Solve for x
x = 1,371,258,408,990.04/1,116,861.60 - Step 6: Final answer
x = 1,227,778.28
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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.