Finding the Fourth Proportional to 720,546.24, 994,267.44 and 398,212.38
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Solution
The fourth proportional to 720,546.24, 994,267.44 and 398,212.38 is: 549,485.35
Step by Step Solution
- Step 1: Write the proportion equation
720,546.24 : 994,267.44 = 398,212.38 : x - Step 2: Convert to fraction form
720,546.24/994,267.44 = 398,212.38/x - Step 3: Cross multiply
720,546.24x = 994,267.44 × 398,212.38 - Step 4: Simplify right side
720,546.24x = 395,929,603,638.91 - Step 5: Solve for x
x = 395,929,603,638.91/720,546.24 - Step 6: Final answer
x = 549,485.35
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1.5x scale
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.