Finding the Fourth Proportional to 347,790.80, 521,686.20 and 343,125.20
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Solution
The fourth proportional to 347,790.80, 521,686.20 and 343,125.20 is: 514,687.80
Step by Step Solution
- Step 1: Write the proportion equation
347,790.80 : 521,686.20 = 343,125.20 : x - Step 2: Convert to fraction form
347,790.80/521,686.20 = 343,125.20/x - Step 3: Cross multiply
347,790.80x = 521,686.20 × 343,125.20 - Step 4: Simplify right side
347,790.80x = 179,003,681,712.24 - Step 5: Solve for x
x = 179,003,681,712.24/347,790.80 - Step 6: Final answer
x = 514,687.80
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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.