Finding the Fourth Proportional to 3,781,439.84, 5,220,942.36 and 2,908,724.84
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Solution
The fourth proportional to 3,781,439.84, 5,220,942.36 and 2,908,724.84 is: 4,016,005.91
Step by Step Solution
- Step 1: Write the proportion equation
3,781,439.84 : 5,220,942.36 = 2,908,724.84 : x - Step 2: Convert to fraction form
3,781,439.84/5,220,942.36 = 2,908,724.84/x - Step 3: Cross multiply
3,781,439.84x = 5,220,942.36 × 2,908,724.84 - Step 4: Simplify right side
3,781,439.84x = 15,186,284,730,740.22 - Step 5: Solve for x
x = 15,186,284,730,740.22/3,781,439.84 - Step 6: Final answer
x = 4,016,005.91
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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.