Finding the Fourth Proportional to 519,961.80, 779,942.70 and 348,719.70
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Solution
The fourth proportional to 519,961.80, 779,942.70 and 348,719.70 is: 523,079.55
Step by Step Solution
- Step 1: Write the proportion equation
519,961.80 : 779,942.70 = 348,719.70 : x - Step 2: Convert to fraction form
519,961.80/779,942.70 = 348,719.70/x - Step 3: Cross multiply
519,961.80x = 779,942.70 × 348,719.70 - Step 4: Simplify right side
519,961.80x = 271,981,384,361.19 - Step 5: Solve for x
x = 271,981,384,361.19/519,961.80 - Step 6: Final answer
x = 523,079.55
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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.