Finding the Fourth Proportional to 728,800.16, 1,092,172.64 and 344,138.62
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Solution
The fourth proportional to 728,800.16, 1,092,172.64 and 344,138.62 is: 515,722.70
Step by Step Solution
- Step 1: Write the proportion equation
728,800.16 : 1,092,172.64 = 344,138.62 : x - Step 2: Convert to fraction form
728,800.16/1,092,172.64 = 344,138.62/x - Step 3: Cross multiply
728,800.16x = 1,092,172.64 × 344,138.62 - Step 4: Simplify right side
728,800.16x = 375,858,785,131.36 - Step 5: Solve for x
x = 375,858,785,131.36/728,800.16 - Step 6: Final answer
x = 515,722.70
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1.5x scale
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.