Finding the Fourth Proportional to 902,760.75, 1,245,809.84 and 500,352.75
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Solution
The fourth proportional to 902,760.75, 1,245,809.84 and 500,352.75 is: 690,486.80
Step by Step Solution
- Step 1: Write the proportion equation
902,760.75 : 1,245,809.84 = 500,352.75 : x - Step 2: Convert to fraction form
902,760.75/1,245,809.84 = 500,352.75/x - Step 3: Cross multiply
902,760.75x = 1,245,809.84 × 500,352.75 - Step 4: Simplify right side
902,760.75x = 623,344,376,919.30 - Step 5: Solve for x
x = 623,344,376,919.30/902,760.75 - Step 6: Final answer
x = 690,486.80
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1.5x scale
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.