Finding the Fourth Proportional to 936,701.76, 1,292,839.20 and 634,992.96
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Solution
The fourth proportional to 936,701.76, 1,292,839.20 and 634,992.96 is: 876,419.61
Step by Step Solution
- Step 1: Write the proportion equation
936,701.76 : 1,292,839.20 = 634,992.96 : x - Step 2: Convert to fraction form
936,701.76/1,292,839.20 = 634,992.96/x - Step 3: Cross multiply
936,701.76x = 1,292,839.20 × 634,992.96 - Step 4: Simplify right side
936,701.76x = 820,943,790,412.03 - Step 5: Solve for x
x = 820,943,790,412.03/936,701.76 - Step 6: Final answer
x = 876,419.61
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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.