Finding the Fourth Proportional to 662,142.82, 993,207.12 and 438,503.80
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Solution
The fourth proportional to 662,142.82, 993,207.12 and 438,503.80 is: 657,750.99
Step by Step Solution
- Step 1: Write the proportion equation
662,142.82 : 993,207.12 = 438,503.80 : x - Step 2: Convert to fraction form
662,142.82/993,207.12 = 438,503.80/x - Step 3: Cross multiply
662,142.82x = 993,207.12 × 438,503.80 - Step 4: Simplify right side
662,142.82x = 435,525,096,307.06 - Step 5: Solve for x
x = 435,525,096,307.06/662,142.82 - Step 6: Final answer
x = 657,750.99
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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.