Finding the Fourth Proportional to 450,453.88, 620,911.74 and 354,809.08
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Solution
The fourth proportional to 450,453.88, 620,911.74 and 354,809.08 is: 489,073.65
Step by Step Solution
- Step 1: Write the proportion equation
450,453.88 : 620,911.74 = 354,809.08 : x - Step 2: Convert to fraction form
450,453.88/620,911.74 = 354,809.08/x - Step 3: Cross multiply
450,453.88x = 620,911.74 × 354,809.08 - Step 4: Simplify right side
450,453.88x = 220,305,123,230.60 - Step 5: Solve for x
x = 220,305,123,230.60/450,453.88 - Step 6: Final answer
x = 489,073.65
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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.