Finding the Fourth Proportional to 821,567.80, 1,232,351.70 and 681,599.80
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Solution
The fourth proportional to 821,567.80, 1,232,351.70 and 681,599.80 is: 1,022,399.70
Step by Step Solution
- Step 1: Write the proportion equation
821,567.80 : 1,232,351.70 = 681,599.80 : x - Step 2: Convert to fraction form
821,567.80/1,232,351.70 = 681,599.80/x - Step 3: Cross multiply
821,567.80x = 1,232,351.70 × 681,599.80 - Step 4: Simplify right side
821,567.80x = 839,970,672,249.66 - Step 5: Solve for x
x = 839,970,672,249.66/821,567.80 - Step 6: Final answer
x = 1,022,399.70
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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.