Finding the Fourth Proportional to 1,242,539.87, 1,863,841.49 and 343,989.35
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Solution
The fourth proportional to 1,242,539.87, 1,863,841.49 and 343,989.35 is: 515,992.80
Step by Step Solution
- Step 1: Write the proportion equation
1,242,539.87 : 1,863,841.49 = 343,989.35 : x - Step 2: Convert to fraction form
1,242,539.87/1,863,841.49 = 343,989.35/x - Step 3: Cross multiply
1,242,539.87x = 1,863,841.49 × 343,989.35 - Step 4: Simplify right side
1,242,539.87x = 641,141,619,888.34 - Step 5: Solve for x
x = 641,141,619,888.34/1,242,539.87 - Step 6: Final answer
x = 515,992.80
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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.