Finding the Fourth Proportional to 791,332.81, 1,091,436.73 and 681,138.99
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Solution
The fourth proportional to 791,332.81, 1,091,436.73 and 681,138.99 is: 939,453.16
Step by Step Solution
- Step 1: Write the proportion equation
791,332.81 : 1,091,436.73 = 681,138.99 : x - Step 2: Convert to fraction form
791,332.81/1,091,436.73 = 681,138.99/x - Step 3: Cross multiply
791,332.81x = 1,091,436.73 × 681,138.99 - Step 4: Simplify right side
791,332.81x = 743,420,110,218.26 - Step 5: Solve for x
x = 743,420,110,218.26/791,332.81 - Step 6: Final answer
x = 939,453.16
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.