Finding the Fourth Proportional to 1,296,186.18, 1,788,773.67 and 723,214.05
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Solution
The fourth proportional to 1,296,186.18, 1,788,773.67 and 723,214.05 is: 998,055.89
Step by Step Solution
- Step 1: Write the proportion equation
1,296,186.18 : 1,788,773.67 = 723,214.05 : x - Step 2: Convert to fraction form
1,296,186.18/1,788,773.67 = 723,214.05/x - Step 3: Cross multiply
1,296,186.18x = 1,788,773.67 × 723,214.05 - Step 4: Simplify right side
1,296,186.18x = 1,293,666,250,414.06 - Step 5: Solve for x
x = 1,293,666,250,414.06/1,296,186.18 - Step 6: Final answer
x = 998,055.89
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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.