Finding the Fourth Proportional to 1,328,277.21, 1,833,163.77 and 812,332.95
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Solution
The fourth proportional to 1,328,277.21, 1,833,163.77 and 812,332.95 is: 1,121,105.84
Step by Step Solution
- Step 1: Write the proportion equation
1,328,277.21 : 1,833,163.77 = 812,332.95 : x - Step 2: Convert to fraction form
1,328,277.21/1,833,163.77 = 812,332.95/x - Step 3: Cross multiply
1,328,277.21x = 1,833,163.77 × 812,332.95 - Step 4: Simplify right side
1,328,277.21x = 1,489,139,333,117.22 - Step 5: Solve for x
x = 1,489,139,333,117.22/1,328,277.21 - Step 6: Final answer
x = 1,121,105.84
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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.