Finding the Fourth Proportional to 727,185.91, 1,088,121.62 and 427,807.48
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Solution
The fourth proportional to 727,185.91, 1,088,121.62 and 427,807.48 is: 640,147.95
Step by Step Solution
- Step 1: Write the proportion equation
727,185.91 : 1,088,121.62 = 427,807.48 : x - Step 2: Convert to fraction form
727,185.91/1,088,121.62 = 427,807.48/x - Step 3: Cross multiply
727,185.91x = 1,088,121.62 × 427,807.48 - Step 4: Simplify right side
727,185.91x = 465,506,568,575.16 - Step 5: Solve for x
x = 465,506,568,575.16/727,185.91 - Step 6: Final answer
x = 640,147.95
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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.