Finding the Fourth Proportional to 618,963.26, 928,444.89 and 408,551.99
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Solution
The fourth proportional to 618,963.26, 928,444.89 and 408,551.99 is: 612,827.98
Step by Step Solution
- Step 1: Write the proportion equation
618,963.26 : 928,444.89 = 408,551.99 : x - Step 2: Convert to fraction form
618,963.26/928,444.89 = 408,551.99/x - Step 3: Cross multiply
618,963.26x = 928,444.89 × 408,551.99 - Step 4: Simplify right side
618,963.26x = 379,318,002,772.61 - Step 5: Solve for x
x = 379,318,002,772.61/618,963.26 - Step 6: Final answer
x = 612,827.98
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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.