Finding the Fourth Proportional to 1,191,192.42, 1,787,122.17 and 481,718.82
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Solution
The fourth proportional to 1,191,192.42, 1,787,122.17 and 481,718.82 is: 722,713.11
Step by Step Solution
- Step 1: Write the proportion equation
1,191,192.42 : 1,787,122.17 = 481,718.82 : x - Step 2: Convert to fraction form
1,191,192.42/1,787,122.17 = 481,718.82/x - Step 3: Cross multiply
1,191,192.42x = 1,787,122.17 × 481,718.82 - Step 4: Simplify right side
1,191,192.42x = 860,890,382,928.24 - Step 5: Solve for x
x = 860,890,382,928.24/1,191,192.42 - Step 6: Final answer
x = 722,713.11
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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.