Finding the Fourth Proportional to 4,918,689.09, 7,377,479.60 and 1,324,719.09
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Solution
The fourth proportional to 4,918,689.09, 7,377,479.60 and 1,324,719.09 is: 1,986,929.42
Step by Step Solution
- Step 1: Write the proportion equation
4,918,689.09 : 7,377,479.60 = 1,324,719.09 : x - Step 2: Convert to fraction form
4,918,689.09/7,377,479.60 = 1,324,719.09/x - Step 3: Cross multiply
4,918,689.09x = 7,377,479.60 × 1,324,719.09 - Step 4: Simplify right side
4,918,689.09x = 9,773,088,055,581.97 - Step 5: Solve for x
x = 9,773,088,055,581.97/4,918,689.09 - Step 6: Final answer
x = 1,986,929.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.