Finding the Fourth Proportional to 2,078,916.54, 2,868,939.99 and 1,161,226.14
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Solution
The fourth proportional to 2,078,916.54, 2,868,939.99 and 1,161,226.14 is: 1,602,511.72
Step by Step Solution
- Step 1: Write the proportion equation
2,078,916.54 : 2,868,939.99 = 1,161,226.14 : x - Step 2: Convert to fraction form
2,078,916.54/2,868,939.99 = 1,161,226.14/x - Step 3: Cross multiply
2,078,916.54x = 2,868,939.99 × 1,161,226.14 - Step 4: Simplify right side
2,078,916.54x = 3,331,488,110,479.34 - Step 5: Solve for x
x = 3,331,488,110,479.34/2,078,916.54 - Step 6: Final answer
x = 1,602,511.72
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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.