Finding the Fourth Proportional to 789,779.35, 1,089,891.21 and 427,202.02
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Solution
The fourth proportional to 789,779.35, 1,089,891.21 and 427,202.02 is: 589,536.47
Step by Step Solution
- Step 1: Write the proportion equation
789,779.35 : 1,089,891.21 = 427,202.02 : x - Step 2: Convert to fraction form
789,779.35/1,089,891.21 = 427,202.02/x - Step 3: Cross multiply
789,779.35x = 1,089,891.21 × 427,202.02 - Step 4: Simplify right side
789,779.35x = 465,603,726,492.24 - Step 5: Solve for x
x = 465,603,726,492.24/789,779.35 - Step 6: Final answer
x = 589,536.47
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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.