Finding the Fourth Proportional to 1,569,221.42, 2,353,522.10 and 431,690.14
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Solution
The fourth proportional to 1,569,221.42, 2,353,522.10 and 431,690.14 is: 647,449.92
Step by Step Solution
- Step 1: Write the proportion equation
1,569,221.42 : 2,353,522.10 = 431,690.14 : x - Step 2: Convert to fraction form
1,569,221.42/2,353,522.10 = 431,690.14/x - Step 3: Cross multiply
1,569,221.42x = 2,353,522.10 × 431,690.14 - Step 4: Simplify right side
1,569,221.42x = 1,015,992,284,842.09 - Step 5: Solve for x
x = 1,015,992,284,842.09/1,569,221.42 - Step 6: Final answer
x = 647,449.92
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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.