Finding the Fourth Proportional to 450,452.88, 620,910.36 and 354,808.08
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Solution
The fourth proportional to 450,452.88, 620,910.36 and 354,808.08 is: 489,072.27
Step by Step Solution
- Step 1: Write the proportion equation
450,452.88 : 620,910.36 = 354,808.08 : x - Step 2: Convert to fraction form
450,452.88/620,910.36 = 354,808.08/x - Step 3: Cross multiply
450,452.88x = 620,910.36 × 354,808.08 - Step 4: Simplify right side
450,452.88x = 220,304,012,683.71 - Step 5: Solve for x
x = 220,304,012,683.71/450,452.88 - Step 6: Final answer
x = 489,072.27
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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.