Finding the Fourth Proportional to 870,403.56, 1,304,555.42 and 449,449.96
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Solution
The fourth proportional to 870,403.56, 1,304,555.42 and 449,449.96 is: 673,632.79
Step by Step Solution
- Step 1: Write the proportion equation
870,403.56 : 1,304,555.42 = 449,449.96 : x - Step 2: Convert to fraction form
870,403.56/1,304,555.42 = 449,449.96/x - Step 3: Cross multiply
870,403.56x = 1,304,555.42 × 449,449.96 - Step 4: Simplify right side
870,403.56x = 586,332,381,336.78 - Step 5: Solve for x
x = 586,332,381,336.78/870,403.56 - Step 6: Final answer
x = 673,632.79
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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.