Finding the Fourth Proportional to 780,382.26, 1,076,608.80 and 618,588
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Solution
The fourth proportional to 780,382.26, 1,076,608.80 and 618,588 is: 853,398.80
Step by Step Solution
- Step 1: Write the proportion equation
780,382.26 : 1,076,608.80 = 618,588 : x - Step 2: Convert to fraction form
780,382.26/1,076,608.80 = 618,588/x - Step 3: Cross multiply
780,382.26x = 1,076,608.80 × 618,588 - Step 4: Simplify right side
780,382.26x = 665,977,284,374.40 - Step 5: Solve for x
x = 665,977,284,374.40/780,382.26 - Step 6: Final answer
x = 853,398.80
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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.