Finding the Fourth Proportional to 1,211,425.82, 1,671,744.68 and 667,611.88
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Solution
The fourth proportional to 1,211,425.82, 1,671,744.68 and 667,611.88 is: 921,291.75
Step by Step Solution
- Step 1: Write the proportion equation
1,211,425.82 : 1,671,744.68 = 667,611.88 : x - Step 2: Convert to fraction form
1,211,425.82/1,671,744.68 = 667,611.88/x - Step 3: Cross multiply
1,211,425.82x = 1,671,744.68 × 667,611.88 - Step 4: Simplify right side
1,211,425.82x = 1,116,076,608,694.80 - Step 5: Solve for x
x = 1,116,076,608,694.80/1,211,425.82 - Step 6: Final answer
x = 921,291.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.