Finding the Fourth Proportional to 3,398,715.74, 4,689,678.92 and 1,948,144.26
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Solution
The fourth proportional to 3,398,715.74, 4,689,678.92 and 1,948,144.26 is: 2,688,124.51
Step by Step Solution
- Step 1: Write the proportion equation
3,398,715.74 : 4,689,678.92 = 1,948,144.26 : x - Step 2: Convert to fraction form
3,398,715.74/4,689,678.92 = 1,948,144.26/x - Step 3: Cross multiply
3,398,715.74x = 4,689,678.92 × 1,948,144.26 - Step 4: Simplify right side
3,398,715.74x = 9,136,171,069,241 - Step 5: Solve for x
x = 9,136,171,069,241/3,398,715.74 - Step 6: Final answer
x = 2,688,124.51
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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.