Finding the Fourth Proportional to 890,908.80, 1,335,772.80 and 491,740.80
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Solution
The fourth proportional to 890,908.80, 1,335,772.80 and 491,740.80 is: 737,285.33
Step by Step Solution
- Step 1: Write the proportion equation
890,908.80 : 1,335,772.80 = 491,740.80 : x - Step 2: Convert to fraction form
890,908.80/1,335,772.80 = 491,740.80/x - Step 3: Cross multiply
890,908.80x = 1,335,772.80 × 491,740.80 - Step 4: Simplify right side
890,908.80x = 656,853,985,290.24 - Step 5: Solve for x
x = 656,853,985,290.24/890,908.80 - Step 6: Final answer
x = 737,285.33
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1.5x scale
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.