Finding the Fourth Proportional to 829,893.40, 1,244,101.58 and 324,339.42
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Solution
The fourth proportional to 829,893.40, 1,244,101.58 and 324,339.42 is: 486,220.50
Step by Step Solution
- Step 1: Write the proportion equation
829,893.40 : 1,244,101.58 = 324,339.42 : x - Step 2: Convert to fraction form
829,893.40/1,244,101.58 = 324,339.42/x - Step 3: Cross multiply
829,893.40x = 1,244,101.58 × 324,339.42 - Step 4: Simplify right side
829,893.40x = 403,511,184,878.28 - Step 5: Solve for x
x = 403,511,184,878.28/829,893.40 - Step 6: Final answer
x = 486,220.50
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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.