Finding the Fourth Proportional to 923,619.75, 1,274,582.07 and 515,728.05
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Solution
The fourth proportional to 923,619.75, 1,274,582.07 and 515,728.05 is: 711,697.35
Step by Step Solution
- Step 1: Write the proportion equation
923,619.75 : 1,274,582.07 = 515,728.05 : x - Step 2: Convert to fraction form
923,619.75/1,274,582.07 = 515,728.05/x - Step 3: Cross multiply
923,619.75x = 1,274,582.07 × 515,728.05 - Step 4: Simplify right side
923,619.75x = 657,337,725,526.06 - Step 5: Solve for x
x = 657,337,725,526.06/923,619.75 - Step 6: Final answer
x = 711,697.35
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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.