Finding the Fourth Proportional to 396,724.48, 547,239.36 and 235,473.28
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Solution
The fourth proportional to 396,724.48, 547,239.36 and 235,473.28 is: 324,810.43
Step by Step Solution
- Step 1: Write the proportion equation
396,724.48 : 547,239.36 = 235,473.28 : x - Step 2: Convert to fraction form
396,724.48/547,239.36 = 235,473.28/x - Step 3: Cross multiply
396,724.48x = 547,239.36 × 235,473.28 - Step 4: Simplify right side
396,724.48x = 128,860,247,044.30 - Step 5: Solve for x
x = 128,860,247,044.30/396,724.48 - Step 6: Final answer
x = 324,810.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.