Finding the Fourth Proportional to 405,553.15, 608,855.61 and 271,475.02
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Solution
The fourth proportional to 405,553.15, 608,855.61 and 271,475.02 is: 407,564.55
Step by Step Solution
- Step 1: Write the proportion equation
405,553.15 : 608,855.61 = 271,475.02 : x - Step 2: Convert to fraction form
405,553.15/608,855.61 = 271,475.02/x - Step 3: Cross multiply
405,553.15x = 608,855.61 × 271,475.02 - Step 4: Simplify right side
405,553.15x = 165,289,085,857.58 - Step 5: Solve for x
x = 165,289,085,857.58/405,553.15 - Step 6: Final answer
x = 407,564.55
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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.