Finding the Fourth Proportional to 852,639.84, 1,176,643.20 and 470,666.88
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Solution
The fourth proportional to 852,639.84, 1,176,643.20 and 470,666.88 is: 649,520.42
Step by Step Solution
- Step 1: Write the proportion equation
852,639.84 : 1,176,643.20 = 470,666.88 : x - Step 2: Convert to fraction form
852,639.84/1,176,643.20 = 470,666.88/x - Step 3: Cross multiply
852,639.84x = 1,176,643.20 × 470,666.88 - Step 4: Simplify right side
852,639.84x = 553,806,983,817.22 - Step 5: Solve for x
x = 553,806,983,817.22/852,639.84 - Step 6: Final answer
x = 649,520.42
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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.