Finding the Fourth Proportional to 1,678,906.74, 2,316,823.69 and 914,943.90
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Solution
The fourth proportional to 1,678,906.74, 2,316,823.69 and 914,943.90 is: 1,262,585.74
Step by Step Solution
- Step 1: Write the proportion equation
1,678,906.74 : 2,316,823.69 = 914,943.90 : x - Step 2: Convert to fraction form
1,678,906.74/2,316,823.69 = 914,943.90/x - Step 3: Cross multiply
1,678,906.74x = 2,316,823.69 × 914,943.90 - Step 4: Simplify right side
1,678,906.74x = 2,119,763,702,540.99 - Step 5: Solve for x
x = 2,119,763,702,540.99/1,678,906.74 - Step 6: Final answer
x = 1,262,585.74
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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.