Finding the Fourth Proportional to 1,688,549.49, 2,330,198.79 and 914,180.18
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Solution
The fourth proportional to 1,688,549.49, 2,330,198.79 and 914,180.18 is: 1,261,568.91
Step by Step Solution
- Step 1: Write the proportion equation
1,688,549.49 : 2,330,198.79 = 914,180.18 : x - Step 2: Convert to fraction form
1,688,549.49/2,330,198.79 = 914,180.18/x - Step 3: Cross multiply
1,688,549.49x = 2,330,198.79 × 914,180.18 - Step 4: Simplify right side
1,688,549.49x = 2,130,221,534,198.81 - Step 5: Solve for x
x = 2,130,221,534,198.81/1,688,549.49 - Step 6: Final answer
x = 1,261,568.91
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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.