Finding the Fourth Proportional to 2,218,415.92, 3,327,991.61 and 778,725.90
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Solution
The fourth proportional to 2,218,415.92, 3,327,991.61 and 778,725.90 is: 1,168,217.92
Step by Step Solution
- Step 1: Write the proportion equation
2,218,415.92 : 3,327,991.61 = 778,725.90 : x - Step 2: Convert to fraction form
2,218,415.92/3,327,991.61 = 778,725.90/x - Step 3: Cross multiply
2,218,415.92x = 3,327,991.61 × 778,725.90 - Step 4: Simplify right side
2,218,415.92x = 2,591,593,241,156.11 - Step 5: Solve for x
x = 2,591,593,241,156.11/2,218,415.92 - Step 6: Final answer
x = 1,168,217.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.