Finding the Fourth Proportional to 478,487.99, 660,340.97 and 274,537.02
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Solution
The fourth proportional to 478,487.99, 660,340.97 and 274,537.02 is: 378,876.89
Step by Step Solution
- Step 1: Write the proportion equation
478,487.99 : 660,340.97 = 274,537.02 : x - Step 2: Convert to fraction form
478,487.99/660,340.97 = 274,537.02/x - Step 3: Cross multiply
478,487.99x = 660,340.97 × 274,537.02 - Step 4: Simplify right side
478,487.99x = 181,288,042,087.71 - Step 5: Solve for x
x = 181,288,042,087.71/478,487.99 - Step 6: Final answer
x = 378,876.89
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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.