Finding the Fourth Proportional to 611,992.12, 844,307.13 and 353,821.63
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Solution
The fourth proportional to 611,992.12, 844,307.13 and 353,821.63 is: 488,133.94
Step by Step Solution
- Step 1: Write the proportion equation
611,992.12 : 844,307.13 = 353,821.63 : x - Step 2: Convert to fraction form
611,992.12/844,307.13 = 353,821.63/x - Step 3: Cross multiply
611,992.12x = 844,307.13 × 353,821.63 - Step 4: Simplify right side
611,992.12x = 298,734,124,957.22 - Step 5: Solve for x
x = 298,734,124,957.22/611,992.12 - Step 6: Final answer
x = 488,133.94
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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.