Finding the Fourth Proportional to 1,398,428.09, 1,929,978.92 and 854,882.09
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Solution
The fourth proportional to 1,398,428.09, 1,929,978.92 and 854,882.09 is: 1,179,827.85
Step by Step Solution
- Step 1: Write the proportion equation
1,398,428.09 : 1,929,978.92 = 854,882.09 : x - Step 2: Convert to fraction form
1,398,428.09/1,929,978.92 = 854,882.09/x - Step 3: Cross multiply
1,398,428.09x = 1,929,978.92 × 854,882.09 - Step 4: Simplify right side
1,398,428.09x = 1,649,904,408,511.13 - Step 5: Solve for x
x = 1,649,904,408,511.13/1,398,428.09 - Step 6: Final answer
x = 1,179,827.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.