Finding the Fourth Proportional to 3,779,436.80, 5,215,398.06 and 2,147,617.68
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Solution
The fourth proportional to 3,779,436.80, 5,215,398.06 and 2,147,617.68 is: 2,963,584.70
Step by Step Solution
- Step 1: Write the proportion equation
3,779,436.80 : 5,215,398.06 = 2,147,617.68 : x - Step 2: Convert to fraction form
3,779,436.80/5,215,398.06 = 2,147,617.68/x - Step 3: Cross multiply
3,779,436.80x = 5,215,398.06 × 2,147,617.68 - Step 4: Simplify right side
3,779,436.80x = 11,200,681,081,893.70 - Step 5: Solve for x
x = 11,200,681,081,893.70/3,779,436.80 - Step 6: Final answer
x = 2,963,584.70
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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.