Finding the Fourth Proportional to 2,128,963.42, 3,193,490.46 and 762,826.36
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Solution
The fourth proportional to 2,128,963.42, 3,193,490.46 and 762,826.36 is: 1,144,255.78
Step by Step Solution
- Step 1: Write the proportion equation
2,128,963.42 : 3,193,490.46 = 762,826.36 : x - Step 2: Convert to fraction form
2,128,963.42/3,193,490.46 = 762,826.36/x - Step 3: Cross multiply
2,128,963.42x = 3,193,490.46 × 762,826.36 - Step 4: Simplify right side
2,128,963.42x = 2,436,078,703,296.53 - Step 5: Solve for x
x = 2,436,078,703,296.53/2,128,963.42 - Step 6: Final answer
x = 1,144,255.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.