Finding the Fourth Proportional to 478,135.68, 716,958.72 and 267,717.12
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Solution
The fourth proportional to 478,135.68, 716,958.72 and 267,717.12 is: 401,438.61
Step by Step Solution
- Step 1: Write the proportion equation
478,135.68 : 716,958.72 = 267,717.12 : x - Step 2: Convert to fraction form
478,135.68/716,958.72 = 267,717.12/x - Step 3: Cross multiply
478,135.68x = 716,958.72 × 267,717.12 - Step 4: Simplify right side
478,135.68x = 191,942,123,677.29 - Step 5: Solve for x
x = 191,942,123,677.29/478,135.68 - Step 6: Final answer
x = 401,438.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.