Finding the Fourth Proportional to 1,215,063.99, 1,676,755.80 and 671,188.10
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Solution
The fourth proportional to 1,215,063.99, 1,676,755.80 and 671,188.10 is: 926,221.62
Step by Step Solution
- Step 1: Write the proportion equation
1,215,063.99 : 1,676,755.80 = 671,188.10 : x - Step 2: Convert to fraction form
1,215,063.99/1,676,755.80 = 671,188.10/x - Step 3: Cross multiply
1,215,063.99x = 1,676,755.80 × 671,188.10 - Step 4: Simplify right side
1,215,063.99x = 1,125,418,531,182.20 - Step 5: Solve for x
x = 1,125,418,531,182.20/1,215,063.99 - Step 6: Final answer
x = 926,221.62
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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.