Finding the Fourth Proportional to 1,286,904, 1,775,922.10 and 713,944.18
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Solution
The fourth proportional to 1,286,904, 1,775,922.10 and 713,944.18 is: 985,239.96
Step by Step Solution
- Step 1: Write the proportion equation
1,286,904 : 1,775,922.10 = 713,944.18 : x - Step 2: Convert to fraction form
1,286,904/1,775,922.10 = 713,944.18/x - Step 3: Cross multiply
1,286,904x = 1,775,922.10 × 713,944.18 - Step 4: Simplify right side
1,286,904x = 1,267,909,247,428.38 - Step 5: Solve for x
x = 1,267,909,247,428.38/1,286,904 - Step 6: Final answer
x = 985,239.96
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1.5x scale
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.