Finding the Fourth Proportional to 804,638.80, 1,129,643.60 and 804,638.80
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Solution
The fourth proportional to 804,638.80, 1,129,643.60 and 804,638.80 is: 1,129,643.60
Step by Step Solution
- Step 1: Write the proportion equation
804,638.80 : 1,129,643.60 = 804,638.80 : x - Step 2: Convert to fraction form
804,638.80/1,129,643.60 = 804,638.80/x - Step 3: Cross multiply
804,638.80x = 1,129,643.60 × 804,638.80 - Step 4: Simplify right side
804,638.80x = 908,955,070,731.68 - Step 5: Solve for x
x = 908,955,070,731.68/804,638.80 - Step 6: Final answer
x = 1,129,643.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.