Finding the Fourth Proportional to 681,701.80, 1,022,552.70 and 515,813.80
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Solution
The fourth proportional to 681,701.80, 1,022,552.70 and 515,813.80 is: 773,720.70
Step by Step Solution
- Step 1: Write the proportion equation
681,701.80 : 1,022,552.70 = 515,813.80 : x - Step 2: Convert to fraction form
681,701.80/1,022,552.70 = 515,813.80/x - Step 3: Cross multiply
681,701.80x = 1,022,552.70 × 515,813.80 - Step 4: Simplify right side
681,701.80x = 527,446,793,887.26 - Step 5: Solve for x
x = 527,446,793,887.26/681,701.80 - Step 6: Final answer
x = 773,720.70
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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.