Finding the Fourth Proportional to 804,991.80, 1,207,487.70 and 490,063.80
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Solution
The fourth proportional to 804,991.80, 1,207,487.70 and 490,063.80 is: 735,095.70
Step by Step Solution
- Step 1: Write the proportion equation
804,991.80 : 1,207,487.70 = 490,063.80 : x - Step 2: Convert to fraction form
804,991.80/1,207,487.70 = 490,063.80/x - Step 3: Cross multiply
804,991.80x = 1,207,487.70 × 490,063.80 - Step 4: Simplify right side
804,991.80x = 591,746,010,715.26 - Step 5: Solve for x
x = 591,746,010,715.26/804,991.80 - Step 6: Final answer
x = 735,095.70
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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.