Finding the Fourth Proportional to 1,490,207.20, 2,234,047.20 and 543,025.60
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Solution
The fourth proportional to 1,490,207.20, 2,234,047.20 and 543,025.60 is: 814,077.95
Step by Step Solution
- Step 1: Write the proportion equation
1,490,207.20 : 2,234,047.20 = 543,025.60 : x - Step 2: Convert to fraction form
1,490,207.20/2,234,047.20 = 543,025.60/x - Step 3: Cross multiply
1,490,207.20x = 2,234,047.20 × 543,025.60 - Step 4: Simplify right side
1,490,207.20x = 1,213,144,821,208.32 - Step 5: Solve for x
x = 1,213,144,821,208.32/1,490,207.20 - Step 6: Final answer
x = 814,077.95
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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.