Finding the Fourth Proportional to 769,609.80, 1,154,414.70 and 349,705.80
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Solution
The fourth proportional to 769,609.80, 1,154,414.70 and 349,705.80 is: 524,558.70
Step by Step Solution
- Step 1: Write the proportion equation
769,609.80 : 1,154,414.70 = 349,705.80 : x - Step 2: Convert to fraction form
769,609.80/1,154,414.70 = 349,705.80/x - Step 3: Cross multiply
769,609.80x = 1,154,414.70 × 349,705.80 - Step 4: Simplify right side
769,609.80x = 403,705,516,195.26 - Step 5: Solve for x
x = 403,705,516,195.26/769,609.80 - Step 6: Final answer
x = 524,558.70
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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.