Finding the Fourth Proportional to 864,810.12, 1,297,452.99 and 415,906.50
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Solution
The fourth proportional to 864,810.12, 1,297,452.99 and 415,906.50 is: 623,974.12
Step by Step Solution
- Step 1: Write the proportion equation
864,810.12 : 1,297,452.99 = 415,906.50 : x - Step 2: Convert to fraction form
864,810.12/1,297,452.99 = 415,906.50/x - Step 3: Cross multiply
864,810.12x = 1,297,452.99 × 415,906.50 - Step 4: Simplify right side
864,810.12x = 539,619,131,985.44 - Step 5: Solve for x
x = 539,619,131,985.44/864,810.12 - Step 6: Final answer
x = 623,974.12
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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.