Finding the Fourth Proportional to 679,745.30, 937,782.97 and 389,201.54
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Solution
The fourth proportional to 679,745.30, 937,782.97 and 389,201.54 is: 536,946.08
Step by Step Solution
- Step 1: Write the proportion equation
679,745.30 : 937,782.97 = 389,201.54 : x - Step 2: Convert to fraction form
679,745.30/937,782.97 = 389,201.54/x - Step 3: Cross multiply
679,745.30x = 937,782.97 × 389,201.54 - Step 4: Simplify right side
679,745.30x = 364,986,570,447.86 - Step 5: Solve for x
x = 364,986,570,447.86/679,745.30 - Step 6: Final answer
x = 536,946.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.