Finding the Fourth Proportional to 1,212,063.12, 1,672,655.40 and 675,553.68
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Solution
The fourth proportional to 1,212,063.12, 1,672,655.40 and 675,553.68 is: 932,268.70
Step by Step Solution
- Step 1: Write the proportion equation
1,212,063.12 : 1,672,655.40 = 675,553.68 : x - Step 2: Convert to fraction form
1,212,063.12/1,672,655.40 = 675,553.68/x - Step 3: Cross multiply
1,212,063.12x = 1,672,655.40 × 675,553.68 - Step 4: Simplify right side
1,212,063.12x = 1,129,968,510,841.87 - Step 5: Solve for x
x = 1,129,968,510,841.87/1,212,063.12 - Step 6: Final answer
x = 932,268.70
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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.