Finding the Fourth Proportional to 1,328,761.76, 1,993,460.09 and 430,204.46
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Solution
The fourth proportional to 1,328,761.76, 1,993,460.09 and 430,204.46 is: 645,409.46
Step by Step Solution
- Step 1: Write the proportion equation
1,328,761.76 : 1,993,460.09 = 430,204.46 : x - Step 2: Convert to fraction form
1,328,761.76/1,993,460.09 = 430,204.46/x - Step 3: Cross multiply
1,328,761.76x = 1,993,460.09 × 430,204.46 - Step 4: Simplify right side
1,328,761.76x = 857,595,409,431.68 - Step 5: Solve for x
x = 857,595,409,431.68/1,328,761.76 - Step 6: Final answer
x = 645,409.46
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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.