Finding the Fourth Proportional to 371,840.40, 514,135.08 and 324,601.20
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Solution
The fourth proportional to 371,840.40, 514,135.08 and 324,601.20 is: 448,818.54
Step by Step Solution
- Step 1: Write the proportion equation
371,840.40 : 514,135.08 = 324,601.20 : x - Step 2: Convert to fraction form
371,840.40/514,135.08 = 324,601.20/x - Step 3: Cross multiply
371,840.40x = 514,135.08 × 324,601.20 - Step 4: Simplify right side
371,840.40x = 166,888,863,930.10 - Step 5: Solve for x
x = 166,888,863,930.10/371,840.40 - Step 6: Final answer
x = 448,818.54
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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.