Finding the Fourth Proportional to 902,169.20, 1,245,126.12 and 520,121.36
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Solution
The fourth proportional to 902,169.20, 1,245,126.12 and 520,121.36 is: 717,843.94
Step by Step Solution
- Step 1: Write the proportion equation
902,169.20 : 1,245,126.12 = 520,121.36 : x - Step 2: Convert to fraction form
902,169.20/1,245,126.12 = 520,121.36/x - Step 3: Cross multiply
902,169.20x = 1,245,126.12 × 520,121.36 - Step 4: Simplify right side
902,169.20x = 647,616,690,905.92 - Step 5: Solve for x
x = 647,616,690,905.92/902,169.20 - Step 6: Final answer
x = 717,843.94
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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.