Finding the Fourth Proportional to 789,644.19, 1,089,708.98 and 427,068.05
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Solution
The fourth proportional to 789,644.19, 1,089,708.98 and 427,068.05 is: 589,353.91
Step by Step Solution
- Step 1: Write the proportion equation
789,644.19 : 1,089,708.98 = 427,068.05 : x - Step 2: Convert to fraction form
789,644.19/1,089,708.98 = 427,068.05/x - Step 3: Cross multiply
789,644.19x = 1,089,708.98 × 427,068.05 - Step 4: Simplify right side
789,644.19x = 465,379,889,156.09 - Step 5: Solve for x
x = 465,379,889,156.09/789,644.19 - Step 6: Final answer
x = 589,353.91
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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.