Finding the Fourth Proportional to 1,220,629.11, 1,684,400.70 and 676,733.14
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Solution
The fourth proportional to 1,220,629.11, 1,684,400.70 and 676,733.14 is: 933,854.33
Step by Step Solution
- Step 1: Write the proportion equation
1,220,629.11 : 1,684,400.70 = 676,733.14 : x - Step 2: Convert to fraction form
1,220,629.11/1,684,400.70 = 676,733.14/x - Step 3: Cross multiply
1,220,629.11x = 1,684,400.70 × 676,733.14 - Step 4: Simplify right side
1,220,629.11x = 1,139,889,774,729.20 - Step 5: Solve for x
x = 1,139,889,774,729.20/1,220,629.11 - Step 6: Final answer
x = 933,854.33
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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.