Finding the Fourth Proportional to 1,137,433.10, 1,569,657.42 and 628,135.46
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Solution
The fourth proportional to 1,137,433.10, 1,569,657.42 and 628,135.46 is: 866,826.79
Step by Step Solution
- Step 1: Write the proportion equation
1,137,433.10 : 1,569,657.42 = 628,135.46 : x - Step 2: Convert to fraction form
1,137,433.10/1,569,657.42 = 628,135.46/x - Step 3: Cross multiply
1,137,433.10x = 1,569,657.42 × 628,135.46 - Step 4: Simplify right side
1,137,433.10x = 985,957,485,554.11 - Step 5: Solve for x
x = 985,957,485,554.11/1,137,433.10 - Step 6: Final answer
x = 866,826.79
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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.