Finding the Fourth Proportional to 923,724.91, 1,274,728.34 and 515,833.92
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Solution
The fourth proportional to 923,724.91, 1,274,728.34 and 515,833.92 is: 711,844.09
Step by Step Solution
- Step 1: Write the proportion equation
923,724.91 : 1,274,728.34 = 515,833.92 : x - Step 2: Convert to fraction form
923,724.91/1,274,728.34 = 515,833.92/x - Step 3: Cross multiply
923,724.91x = 1,274,728.34 × 515,833.92 - Step 4: Simplify right side
923,724.91x = 657,548,114,945.31 - Step 5: Solve for x
x = 657,548,114,945.31/923,724.91 - Step 6: Final answer
x = 711,844.09
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1.5x scale
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.