Finding the Fourth Proportional to 1,689,476.97, 2,331,459.54 and 915,088.62
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Solution
The fourth proportional to 1,689,476.97, 2,331,459.54 and 915,088.62 is: 1,262,812.18
Step by Step Solution
- Step 1: Write the proportion equation
1,689,476.97 : 2,331,459.54 = 915,088.62 : x - Step 2: Convert to fraction form
1,689,476.97/2,331,459.54 = 915,088.62/x - Step 3: Cross multiply
1,689,476.97x = 2,331,459.54 × 915,088.62 - Step 4: Simplify right side
1,689,476.97x = 2,133,492,093,044.43 - Step 5: Solve for x
x = 2,133,492,093,044.43/1,689,476.97 - Step 6: Final answer
x = 1,262,812.18
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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.