Finding the Fourth Proportional to 662,961.80, 994,442.70 and 307,857.80
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Solution
The fourth proportional to 662,961.80, 994,442.70 and 307,857.80 is: 461,786.70
Step by Step Solution
- Step 1: Write the proportion equation
662,961.80 : 994,442.70 = 307,857.80 : x - Step 2: Convert to fraction form
662,961.80/994,442.70 = 307,857.80/x - Step 3: Cross multiply
662,961.80x = 994,442.70 × 307,857.80 - Step 4: Simplify right side
662,961.80x = 306,146,941,848.06 - Step 5: Solve for x
x = 306,146,941,848.06/662,961.80 - Step 6: Final answer
x = 461,786.70
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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.