Finding the Fourth Proportional to 478,409.28, 717,614.94 and 449,180.03
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Solution
The fourth proportional to 478,409.28, 717,614.94 and 449,180.03 is: 673,770.99
Step by Step Solution
- Step 1: Write the proportion equation
478,409.28 : 717,614.94 = 449,180.03 : x - Step 2: Convert to fraction form
478,409.28/717,614.94 = 449,180.03/x - Step 3: Cross multiply
478,409.28x = 717,614.94 × 449,180.03 - Step 4: Simplify right side
478,409.28x = 322,338,294,443.67 - Step 5: Solve for x
x = 322,338,294,443.67/478,409.28 - Step 6: Final answer
x = 673,770.99
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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.