Finding the Fourth Proportional to 789,483.38, 1,089,420.84 and 467,136.99
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Solution
The fourth proportional to 789,483.38, 1,089,420.84 and 467,136.99 is: 644,609.87
Step by Step Solution
- Step 1: Write the proportion equation
789,483.38 : 1,089,420.84 = 467,136.99 : x - Step 2: Convert to fraction form
789,483.38/1,089,420.84 = 467,136.99/x - Step 3: Cross multiply
789,483.38x = 1,089,420.84 × 467,136.99 - Step 4: Simplify right side
789,483.38x = 508,908,772,040.87 - Step 5: Solve for x
x = 508,908,772,040.87/789,483.38 - Step 6: Final answer
x = 644,609.87
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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.