Finding the Fourth Proportional to 667,056.25, 920,531.23 and 361,124.79
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Solution
The fourth proportional to 667,056.25, 920,531.23 and 361,124.79 is: 498,348.75
Step by Step Solution
- Step 1: Write the proportion equation
667,056.25 : 920,531.23 = 361,124.79 : x - Step 2: Convert to fraction form
667,056.25/920,531.23 = 361,124.79/x - Step 3: Cross multiply
667,056.25x = 920,531.23 × 361,124.79 - Step 4: Simplify right side
667,056.25x = 332,426,647,122.19 - Step 5: Solve for x
x = 332,426,647,122.19/667,056.25 - Step 6: Final answer
x = 498,348.75
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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.