Finding the Fourth Proportional to 789,485.88, 1,089,424.29 and 467,139.49
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Solution
The fourth proportional to 789,485.88, 1,089,424.29 and 467,139.49 is: 644,613.31
Step by Step Solution
- Step 1: Write the proportion equation
789,485.88 : 1,089,424.29 = 467,139.49 : x - Step 2: Convert to fraction form
789,485.88/1,089,424.29 = 467,139.49/x - Step 3: Cross multiply
789,485.88x = 1,089,424.29 × 467,139.49 - Step 4: Simplify right side
789,485.88x = 508,913,107,224.21 - Step 5: Solve for x
x = 508,913,107,224.21/789,485.88 - Step 6: Final answer
x = 644,613.31
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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.