Finding the Fourth Proportional to 789,319.68, 1,089,239.04 and 431,616
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Solution
The fourth proportional to 789,319.68, 1,089,239.04 and 431,616 is: 595,617.99
Step by Step Solution
- Step 1: Write the proportion equation
789,319.68 : 1,089,239.04 = 431,616 : x - Step 2: Convert to fraction form
789,319.68/1,089,239.04 = 431,616/x - Step 3: Cross multiply
789,319.68x = 1,089,239.04 × 431,616 - Step 4: Simplify right side
789,319.68x = 470,132,997,488.64 - Step 5: Solve for x
x = 470,132,997,488.64/789,319.68 - Step 6: Final answer
x = 595,617.99
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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.