Finding the Fourth Proportional to 1,333,409.75, 1,840,110.30 and 721,562.45
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Solution
The fourth proportional to 1,333,409.75, 1,840,110.30 and 721,562.45 is: 995,758.80
Step by Step Solution
- Step 1: Write the proportion equation
1,333,409.75 : 1,840,110.30 = 721,562.45 : x - Step 2: Convert to fraction form
1,333,409.75/1,840,110.30 = 721,562.45/x - Step 3: Cross multiply
1,333,409.75x = 1,840,110.30 × 721,562.45 - Step 4: Simplify right side
1,333,409.75x = 1,327,754,487,137.68 - Step 5: Solve for x
x = 1,327,754,487,137.68/1,333,409.75 - Step 6: Final answer
x = 995,758.80
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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.