Finding the Fourth Proportional to 1,612,939.20, 2,225,838.45 and 887,771.31
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Solution
The fourth proportional to 1,612,939.20, 2,225,838.45 and 887,771.31 is: 1,225,114.70
Step by Step Solution
- Step 1: Write the proportion equation
1,612,939.20 : 2,225,838.45 = 887,771.31 : x - Step 2: Convert to fraction form
1,612,939.20/2,225,838.45 = 887,771.31/x - Step 3: Cross multiply
1,612,939.20x = 2,225,838.45 × 887,771.31 - Step 4: Simplify right side
1,612,939.20x = 1,976,035,516,604.87 - Step 5: Solve for x
x = 1,976,035,516,604.87/1,612,939.20 - Step 6: Final answer
x = 1,225,114.70
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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.