Finding the Fourth Proportional to 804,985.40, 1,207,478.10 and 744,159.80
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Solution
The fourth proportional to 804,985.40, 1,207,478.10 and 744,159.80 is: 1,116,239.70
Step by Step Solution
- Step 1: Write the proportion equation
804,985.40 : 1,207,478.10 = 744,159.80 : x - Step 2: Convert to fraction form
804,985.40/1,207,478.10 = 744,159.80/x - Step 3: Cross multiply
804,985.40x = 1,207,478.10 × 744,159.80 - Step 4: Simplify right side
804,985.40x = 898,556,661,400.38 - Step 5: Solve for x
x = 898,556,661,400.38/804,985.40 - Step 6: Final answer
x = 1,116,239.70
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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.