Finding the Fourth Proportional to 804,578.80, 1,207,548.60 and 331,603.60
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Solution
The fourth proportional to 804,578.80, 1,207,548.60 and 331,603.60 is: 497,685.82
Step by Step Solution
- Step 1: Write the proportion equation
804,578.80 : 1,207,548.60 = 331,603.60 : x - Step 2: Convert to fraction form
804,578.80/1,207,548.60 = 331,603.60/x - Step 3: Cross multiply
804,578.80x = 1,207,548.60 × 331,603.60 - Step 4: Simplify right side
804,578.80x = 400,427,462,934.96 - Step 5: Solve for x
x = 400,427,462,934.96/804,578.80 - Step 6: Final answer
x = 497,685.82
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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.