Finding the Fourth Proportional to 395,522.12, 545,669.92 and 292,403.92
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Solution
The fourth proportional to 395,522.12, 545,669.92 and 292,403.92 is: 403,406.07
Step by Step Solution
- Step 1: Write the proportion equation
395,522.12 : 545,669.92 = 292,403.92 : x - Step 2: Convert to fraction form
395,522.12/545,669.92 = 292,403.92/x - Step 3: Cross multiply
395,522.12x = 545,669.92 × 292,403.92 - Step 4: Simplify right side
395,522.12x = 159,556,023,634.09 - Step 5: Solve for x
x = 159,556,023,634.09/395,522.12 - Step 6: Final answer
x = 403,406.07
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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.