Finding the Fourth Proportional to 621,114.18, 857,117.60 and 349,193.49
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Solution
The fourth proportional to 621,114.18, 857,117.60 and 349,193.49 is: 481,875.78
Step by Step Solution
- Step 1: Write the proportion equation
621,114.18 : 857,117.60 = 349,193.49 : x - Step 2: Convert to fraction form
621,114.18/857,117.60 = 349,193.49/x - Step 3: Cross multiply
621,114.18x = 857,117.60 × 349,193.49 - Step 4: Simplify right side
621,114.18x = 299,299,880,052.87 - Step 5: Solve for x
x = 299,299,880,052.87/621,114.18 - Step 6: Final answer
x = 481,875.78
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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.