Finding the Fourth Proportional to 413,607.22, 620,942.14 and 318,897.56
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Solution
The fourth proportional to 413,607.22, 620,942.14 and 318,897.56 is: 478,755.99
Step by Step Solution
- Step 1: Write the proportion equation
413,607.22 : 620,942.14 = 318,897.56 : x - Step 2: Convert to fraction form
413,607.22/620,942.14 = 318,897.56/x - Step 3: Cross multiply
413,607.22x = 620,942.14 × 318,897.56 - Step 4: Simplify right side
413,607.22x = 198,016,933,347.18 - Step 5: Solve for x
x = 198,016,933,347.18/413,607.22 - Step 6: Final answer
x = 478,755.99
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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.