Finding the Fourth Proportional to 789,778.35, 1,089,889.83 and 427,201.02
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Solution
The fourth proportional to 789,778.35, 1,089,889.83 and 427,201.02 is: 589,535.09
Step by Step Solution
- Step 1: Write the proportion equation
789,778.35 : 1,089,889.83 = 427,201.02 : x - Step 2: Convert to fraction form
789,778.35/1,089,889.83 = 427,201.02/x - Step 3: Cross multiply
789,778.35x = 1,089,889.83 × 427,201.02 - Step 4: Simplify right side
789,778.35x = 465,602,047,063.63 - Step 5: Solve for x
x = 465,602,047,063.63/789,778.35 - Step 6: Final answer
x = 589,535.09
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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.