Finding the Fourth Proportional to 2,116,295.76, 2,920,496.49 and 1,149,442.19
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Solution
The fourth proportional to 2,116,295.76, 2,920,496.49 and 1,149,442.19 is: 1,586,234.75
Step by Step Solution
- Step 1: Write the proportion equation
2,116,295.76 : 2,920,496.49 = 1,149,442.19 : x - Step 2: Convert to fraction form
2,116,295.76/2,920,496.49 = 1,149,442.19/x - Step 3: Cross multiply
2,116,295.76x = 2,920,496.49 × 1,149,442.19 - Step 4: Simplify right side
2,116,295.76x = 3,356,941,866,750.43 - Step 5: Solve for x
x = 3,356,941,866,750.43/2,116,295.76 - Step 6: Final answer
x = 1,586,234.75
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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.