Finding the Fourth Proportional to 681,211.80, 1,021,817.70 and 576,235.80
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Solution
The fourth proportional to 681,211.80, 1,021,817.70 and 576,235.80 is: 864,353.70
Step by Step Solution
- Step 1: Write the proportion equation
681,211.80 : 1,021,817.70 = 576,235.80 : x - Step 2: Convert to fraction form
681,211.80/1,021,817.70 = 576,235.80/x - Step 3: Cross multiply
681,211.80x = 1,021,817.70 × 576,235.80 - Step 4: Simplify right side
681,211.80x = 588,807,939,813.66 - Step 5: Solve for x
x = 588,807,939,813.66/681,211.80 - Step 6: Final answer
x = 864,353.70
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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.