Finding the Fourth Proportional to 1,611,387.75, 2,417,082.21 and 413,310.09
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Solution
The fourth proportional to 1,611,387.75, 2,417,082.21 and 413,310.09 is: 619,965.29
Step by Step Solution
- Step 1: Write the proportion equation
1,611,387.75 : 2,417,082.21 = 413,310.09 : x - Step 2: Convert to fraction form
1,611,387.75/2,417,082.21 = 413,310.09/x - Step 3: Cross multiply
1,611,387.75x = 2,417,082.21 × 413,310.09 - Step 4: Simplify right side
1,611,387.75x = 999,004,465,752.50 - Step 5: Solve for x
x = 999,004,465,752.50/1,611,387.75 - Step 6: Final answer
x = 619,965.29
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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.