Finding the Fourth Proportional to 478,634.16, 660,517.74 and 274,668.84
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Solution
The fourth proportional to 478,634.16, 660,517.74 and 274,668.84 is: 379,044.49
Step by Step Solution
- Step 1: Write the proportion equation
478,634.16 : 660,517.74 = 274,668.84 : x - Step 2: Convert to fraction form
478,634.16/660,517.74 = 274,668.84/x - Step 3: Cross multiply
478,634.16x = 660,517.74 × 274,668.84 - Step 4: Simplify right side
478,634.16x = 181,423,641,445.22 - Step 5: Solve for x
x = 181,423,641,445.22/478,634.16 - Step 6: Final answer
x = 379,044.49
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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.