Finding the Fourth Proportional to 826,740.75, 1,239,792.24 and 321,235.17
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Solution
The fourth proportional to 826,740.75, 1,239,792.24 and 321,235.17 is: 481,728.85
Step by Step Solution
- Step 1: Write the proportion equation
826,740.75 : 1,239,792.24 = 321,235.17 : x - Step 2: Convert to fraction form
826,740.75/1,239,792.24 = 321,235.17/x - Step 3: Cross multiply
826,740.75x = 1,239,792.24 × 321,235.17 - Step 4: Simplify right side
826,740.75x = 398,264,870,981.08 - Step 5: Solve for x
x = 398,264,870,981.08/826,740.75 - Step 6: Final answer
x = 481,728.85
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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.