Finding the Fourth Proportional to 723,874.74, 1,085,820.46 and 218,440.09
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Solution
The fourth proportional to 723,874.74, 1,085,820.46 and 218,440.09 is: 327,662.66
Step by Step Solution
- Step 1: Write the proportion equation
723,874.74 : 1,085,820.46 = 218,440.09 : x - Step 2: Convert to fraction form
723,874.74/1,085,820.46 = 218,440.09/x - Step 3: Cross multiply
723,874.74x = 1,085,820.46 × 218,440.09 - Step 4: Simplify right side
723,874.74x = 237,186,719,006.24 - Step 5: Solve for x
x = 237,186,719,006.24/723,874.74 - Step 6: Final answer
x = 327,662.66
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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.