Finding the Fourth Proportional to 3,898,472.68, 5,379,963.06 and 2,179,409.68
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Solution
The fourth proportional to 3,898,472.68, 5,379,963.06 and 2,179,409.68 is: 3,007,624.92
Step by Step Solution
- Step 1: Write the proportion equation
3,898,472.68 : 5,379,963.06 = 2,179,409.68 : x - Step 2: Convert to fraction form
3,898,472.68/5,379,963.06 = 2,179,409.68/x - Step 3: Cross multiply
3,898,472.68x = 5,379,963.06 × 2,179,409.68 - Step 4: Simplify right side
3,898,472.68x = 11,725,143,571,006.42 - Step 5: Solve for x
x = 11,725,143,571,006.42/3,898,472.68 - Step 6: Final answer
x = 3,007,624.92
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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.