Finding the Fourth Proportional to 711,808.92, 982,296.41 and 389,519.09
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Solution
The fourth proportional to 711,808.92, 982,296.41 and 389,519.09 is: 537,536.39
Step by Step Solution
- Step 1: Write the proportion equation
711,808.92 : 982,296.41 = 389,519.09 : x - Step 2: Convert to fraction form
711,808.92/982,296.41 = 389,519.09/x - Step 3: Cross multiply
711,808.92x = 982,296.41 × 389,519.09 - Step 4: Simplify right side
711,808.92x = 382,623,196,874.39 - Step 5: Solve for x
x = 382,623,196,874.39/711,808.92 - Step 6: Final answer
x = 537,536.39
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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.