Finding the Fourth Proportional to 852,689.19, 1,176,728.88 and 465,520.94
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Solution
The fourth proportional to 852,689.19, 1,176,728.88 and 465,520.94 is: 642,428.61
Step by Step Solution
- Step 1: Write the proportion equation
852,689.19 : 1,176,728.88 = 465,520.94 : x - Step 2: Convert to fraction form
852,689.19/1,176,728.88 = 465,520.94/x - Step 3: Cross multiply
852,689.19x = 1,176,728.88 × 465,520.94 - Step 4: Simplify right side
852,689.19x = 547,791,928,459.10 - Step 5: Solve for x
x = 547,791,928,459.10/852,689.19 - Step 6: Final answer
x = 642,428.61
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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.