Finding the Fourth Proportional to 678,167.78, 1,017,202.37 and 273,386.88
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Solution
The fourth proportional to 678,167.78, 1,017,202.37 and 273,386.88 is: 410,060.45
Step by Step Solution
- Step 1: Write the proportion equation
678,167.78 : 1,017,202.37 = 273,386.88 : x - Step 2: Convert to fraction form
678,167.78/1,017,202.37 = 273,386.88/x - Step 3: Cross multiply
678,167.78x = 1,017,202.37 × 273,386.88 - Step 4: Simplify right side
678,167.78x = 278,089,780,895.97 - Step 5: Solve for x
x = 278,089,780,895.97/678,167.78 - Step 6: Final answer
x = 410,060.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.