Finding the Fourth Proportional to 804,943.80, 1,207,415.70 and 213,967.80
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Solution
The fourth proportional to 804,943.80, 1,207,415.70 and 213,967.80 is: 320,951.70
Step by Step Solution
- Step 1: Write the proportion equation
804,943.80 : 1,207,415.70 = 213,967.80 : x - Step 2: Convert to fraction form
804,943.80/1,207,415.70 = 213,967.80/x - Step 3: Cross multiply
804,943.80x = 1,207,415.70 × 213,967.80 - Step 4: Simplify right side
804,943.80x = 258,348,081,014.46 - Step 5: Solve for x
x = 258,348,081,014.46/804,943.80 - Step 6: Final answer
x = 320,951.70
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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.