Finding the Fourth Proportional to 902,744.12, 1,245,756.30 and 520,761.08
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Solution
The fourth proportional to 902,744.12, 1,245,756.30 and 520,761.08 is: 718,632.65
Step by Step Solution
- Step 1: Write the proportion equation
902,744.12 : 1,245,756.30 = 520,761.08 : x - Step 2: Convert to fraction form
902,744.12/1,245,756.30 = 520,761.08/x - Step 3: Cross multiply
902,744.12x = 1,245,756.30 × 520,761.08 - Step 4: Simplify right side
902,744.12x = 648,741,396,204.80 - Step 5: Solve for x
x = 648,741,396,204.80/902,744.12 - Step 6: Final answer
x = 718,632.65
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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.