Finding the Fourth Proportional to 3,828,669.12, 5,283,495.62 and 2,086,353.88
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Solution
The fourth proportional to 3,828,669.12, 5,283,495.62 and 2,086,353.88 is: 2,879,131.43
Step by Step Solution
- Step 1: Write the proportion equation
3,828,669.12 : 5,283,495.62 = 2,086,353.88 : x - Step 2: Convert to fraction form
3,828,669.12/5,283,495.62 = 2,086,353.88/x - Step 3: Cross multiply
3,828,669.12x = 5,283,495.62 × 2,086,353.88 - Step 4: Simplify right side
3,828,669.12x = 11,023,241,579,926.02 - Step 5: Solve for x
x = 11,023,241,579,926.02/3,828,669.12 - Step 6: Final answer
x = 2,879,131.43
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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.