Finding the Fourth Proportional to 4,157,381.20, 6,236,266.20 and 1,317,715.60
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Solution
The fourth proportional to 4,157,381.20, 6,236,266.20 and 1,317,715.60 is: 1,976,635.02
Step by Step Solution
- Step 1: Write the proportion equation
4,157,381.20 : 6,236,266.20 = 1,317,715.60 : x - Step 2: Convert to fraction form
4,157,381.20/6,236,266.20 = 1,317,715.60/x - Step 3: Cross multiply
4,157,381.20x = 6,236,266.20 × 1,317,715.60 - Step 4: Simplify right side
4,157,381.20x = 8,217,625,257,492.72 - Step 5: Solve for x
x = 8,217,625,257,492.72/4,157,381.20 - Step 6: Final answer
x = 1,976,635.02
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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.