Finding the Fourth Proportional to 489,597.71, 675,711.99 and 274,750.47
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Solution
The fourth proportional to 489,597.71, 675,711.99 and 274,750.47 is: 379,193.34
Step by Step Solution
- Step 1: Write the proportion equation
489,597.71 : 675,711.99 = 274,750.47 : x - Step 2: Convert to fraction form
489,597.71/675,711.99 = 274,750.47/x - Step 3: Cross multiply
489,597.71x = 675,711.99 × 274,750.47 - Step 4: Simplify right side
489,597.71x = 185,652,186,837.14 - Step 5: Solve for x
x = 185,652,186,837.14/489,597.71 - Step 6: Final answer
x = 379,193.34
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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.