Finding the Fourth Proportional to 789,450.72, 1,089,376.14 and 445,267.68
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Solution
The fourth proportional to 789,450.72, 1,089,376.14 and 445,267.68 is: 614,432.26
Step by Step Solution
- Step 1: Write the proportion equation
789,450.72 : 1,089,376.14 = 445,267.68 : x - Step 2: Convert to fraction form
789,450.72/1,089,376.14 = 445,267.68/x - Step 3: Cross multiply
789,450.72x = 1,089,376.14 × 445,267.68 - Step 4: Simplify right side
789,450.72x = 485,063,986,505.16 - Step 5: Solve for x
x = 485,063,986,505.16/789,450.72 - Step 6: Final answer
x = 614,432.26
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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.