Finding the Fourth Proportional to 1,328,165.40, 1,832,859.68 and 755,205.54
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Solution
The fourth proportional to 1,328,165.40, 1,832,859.68 and 755,205.54 is: 1,042,178.77
Step by Step Solution
- Step 1: Write the proportion equation
1,328,165.40 : 1,832,859.68 = 755,205.54 : x - Step 2: Convert to fraction form
1,328,165.40/1,832,859.68 = 755,205.54/x - Step 3: Cross multiply
1,328,165.40x = 1,832,859.68 × 755,205.54 - Step 4: Simplify right side
1,328,165.40x = 1,384,185,784,378.63 - Step 5: Solve for x
x = 1,384,185,784,378.63/1,328,165.40 - Step 6: Final answer
x = 1,042,178.77
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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.