Finding the Fourth Proportional to 422,000.66, 635,963.18 and 379,922.78
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Solution
The fourth proportional to 422,000.66, 635,963.18 and 379,922.78 is: 572,550.99
Step by Step Solution
- Step 1: Write the proportion equation
422,000.66 : 635,963.18 = 379,922.78 : x - Step 2: Convert to fraction form
422,000.66/635,963.18 = 379,922.78/x - Step 3: Cross multiply
422,000.66x = 635,963.18 × 379,922.78 - Step 4: Simplify right side
422,000.66x = 241,616,897,423.63 - Step 5: Solve for x
x = 241,616,897,423.63/422,000.66 - Step 6: Final answer
x = 572,550.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.