Finding the Fourth Proportional to 2,862,212.16, 3,949,898.88 and 1,638,512.76
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Solution
The fourth proportional to 2,862,212.16, 3,949,898.88 and 1,638,512.76 is: 2,261,174.00
Step by Step Solution
- Step 1: Write the proportion equation
2,862,212.16 : 3,949,898.88 = 1,638,512.76 : x - Step 2: Convert to fraction form
2,862,212.16/3,949,898.88 = 1,638,512.76/x - Step 3: Cross multiply
2,862,212.16x = 3,949,898.88 × 1,638,512.76 - Step 4: Simplify right side
2,862,212.16x = 6,471,959,715,589.71 - Step 5: Solve for x
x = 6,471,959,715,589.71/2,862,212.16 - Step 6: Final answer
x = 2,261,174.00
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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.