Finding the Fourth Proportional to 804,881.80, 1,207,322.70 and 213,905.80
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Solution
The fourth proportional to 804,881.80, 1,207,322.70 and 213,905.80 is: 320,858.70
Step by Step Solution
- Step 1: Write the proportion equation
804,881.80 : 1,207,322.70 = 213,905.80 : x - Step 2: Convert to fraction form
804,881.80/1,207,322.70 = 213,905.80/x - Step 3: Cross multiply
804,881.80x = 1,207,322.70 × 213,905.80 - Step 4: Simplify right side
804,881.80x = 258,253,328,001.66 - Step 5: Solve for x
x = 258,253,328,001.66/804,881.80 - Step 6: Final answer
x = 320,858.70
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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.