Finding the Fourth Proportional to 521,858.49, 782,795.12 and 147,881.49
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Solution
The fourth proportional to 521,858.49, 782,795.12 and 147,881.49 is: 221,824.33
Step by Step Solution
- Step 1: Write the proportion equation
521,858.49 : 782,795.12 = 147,881.49 : x - Step 2: Convert to fraction form
521,858.49/782,795.12 = 147,881.49/x - Step 3: Cross multiply
521,858.49x = 782,795.12 × 147,881.49 - Step 4: Simplify right side
521,858.49x = 115,760,907,970.92 - Step 5: Solve for x
x = 115,760,907,970.92/521,858.49 - Step 6: Final answer
x = 221,824.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.