Finding the Fourth Proportional to 1,678,906.49, 2,316,823.36 and 914,943.65
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Solution
The fourth proportional to 1,678,906.49, 2,316,823.36 and 914,943.65 is: 1,262,585.40
Step by Step Solution
- Step 1: Write the proportion equation
1,678,906.49 : 2,316,823.36 = 914,943.65 : x - Step 2: Convert to fraction form
1,678,906.49/2,316,823.36 = 914,943.65/x - Step 3: Cross multiply
1,678,906.49x = 2,316,823.36 × 914,943.65 - Step 4: Simplify right side
1,678,906.49x = 2,119,762,807,532.19 - Step 5: Solve for x
x = 2,119,762,807,532.19/1,678,906.49 - Step 6: Final answer
x = 1,262,585.40
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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.