Finding the Fourth Proportional to 492,612.54, 738,920.61 and 137,625.99
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Solution
The fourth proportional to 492,612.54, 738,920.61 and 137,625.99 is: 206,439.49
Step by Step Solution
- Step 1: Write the proportion equation
492,612.54 : 738,920.61 = 137,625.99 : x - Step 2: Convert to fraction form
492,612.54/738,920.61 = 137,625.99/x - Step 3: Cross multiply
492,612.54x = 738,920.61 × 137,625.99 - Step 4: Simplify right side
492,612.54x = 101,694,680,482.65 - Step 5: Solve for x
x = 101,694,680,482.65/492,612.54 - Step 6: Final answer
x = 206,439.49
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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.