Finding the Fourth Proportional to 2,086,979.28, 2,880,102.60 and 1,169,247.12
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Solution
The fourth proportional to 2,086,979.28, 2,880,102.60 and 1,169,247.12 is: 1,613,600.91
Step by Step Solution
- Step 1: Write the proportion equation
2,086,979.28 : 2,880,102.60 = 1,169,247.12 : x - Step 2: Convert to fraction form
2,086,979.28/2,880,102.60 = 1,169,247.12/x - Step 3: Cross multiply
2,086,979.28x = 2,880,102.60 × 1,169,247.12 - Step 4: Simplify right side
2,086,979.28x = 3,367,551,670,354.51 - Step 5: Solve for x
x = 3,367,551,670,354.51/2,086,979.28 - Step 6: Final answer
x = 1,613,600.91
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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.