Finding the Fourth Proportional to 1,213,845.57, 1,820,565.99 and 445,184.28
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Solution
The fourth proportional to 1,213,845.57, 1,820,565.99 and 445,184.28 is: 667,702.20
Step by Step Solution
- Step 1: Write the proportion equation
1,213,845.57 : 1,820,565.99 = 445,184.28 : x - Step 2: Convert to fraction form
1,213,845.57/1,820,565.99 = 445,184.28/x - Step 3: Cross multiply
1,213,845.57x = 1,820,565.99 × 445,184.28 - Step 4: Simplify right side
1,213,845.57x = 810,487,359,450.64 - Step 5: Solve for x
x = 810,487,359,450.64/1,213,845.57 - Step 6: Final answer
x = 667,702.20
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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.