Finding the Fourth Proportional to 621,283.02, 857,353.44 and 349,343.92
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Solution
The fourth proportional to 621,283.02, 857,353.44 and 349,343.92 is: 482,084.98
Step by Step Solution
- Step 1: Write the proportion equation
621,283.02 : 857,353.44 = 349,343.92 : x - Step 2: Convert to fraction form
621,283.02/857,353.44 = 349,343.92/x - Step 3: Cross multiply
621,283.02x = 857,353.44 × 349,343.92 - Step 4: Simplify right side
621,283.02x = 299,511,211,555.09 - Step 5: Solve for x
x = 299,511,211,555.09/621,283.02 - Step 6: Final answer
x = 482,084.98
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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.