Finding the Fourth Proportional to 1,286,904.51, 1,775,922.80 and 713,944.68
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Solution
The fourth proportional to 1,286,904.51, 1,775,922.80 and 713,944.68 is: 985,240.65
Step by Step Solution
- Step 1: Write the proportion equation
1,286,904.51 : 1,775,922.80 = 713,944.68 : x - Step 2: Convert to fraction form
1,286,904.51/1,775,922.80 = 713,944.68/x - Step 3: Cross multiply
1,286,904.51x = 1,775,922.80 × 713,944.68 - Step 4: Simplify right side
1,286,904.51x = 1,267,910,631,580.98 - Step 5: Solve for x
x = 1,267,910,631,580.98/1,286,904.51 - Step 6: Final answer
x = 985,240.65
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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.