Finding the Fourth Proportional to 1,680,472.17, 2,318,636.75 and 992,160.09
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Solution
The fourth proportional to 1,680,472.17, 2,318,636.75 and 992,160.09 is: 1,368,935.99
Step by Step Solution
- Step 1: Write the proportion equation
1,680,472.17 : 2,318,636.75 = 992,160.09 : x - Step 2: Convert to fraction form
1,680,472.17/2,318,636.75 = 992,160.09/x - Step 3: Cross multiply
1,680,472.17x = 2,318,636.75 × 992,160.09 - Step 4: Simplify right side
1,680,472.17x = 2,300,458,841,596.51 - Step 5: Solve for x
x = 2,300,458,841,596.51/1,680,472.17 - Step 6: Final answer
x = 1,368,935.99
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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.