Finding the Fourth Proportional to 545,861.20, 753,344.40 and 304,183.12
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Solution
The fourth proportional to 545,861.20, 753,344.40 and 304,183.12 is: 419,803.88
Step by Step Solution
- Step 1: Write the proportion equation
545,861.20 : 753,344.40 = 304,183.12 : x - Step 2: Convert to fraction form
545,861.20/753,344.40 = 304,183.12/x - Step 3: Cross multiply
545,861.20x = 753,344.40 × 304,183.12 - Step 4: Simplify right side
545,861.20x = 229,154,650,026.53 - Step 5: Solve for x
x = 229,154,650,026.53/545,861.20 - Step 6: Final answer
x = 419,803.88
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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.