Finding the Fourth Proportional to 1,286,853.68, 1,775,860.17 and 713,893.86
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Solution
The fourth proportional to 1,286,853.68, 1,775,860.17 and 713,893.86 is: 985,174.69
Step by Step Solution
- Step 1: Write the proportion equation
1,286,853.68 : 1,775,860.17 = 713,893.86 : x - Step 2: Convert to fraction form
1,286,853.68/1,775,860.17 = 713,893.86/x - Step 3: Cross multiply
1,286,853.68x = 1,775,860.17 × 713,893.86 - Step 4: Simplify right side
1,286,853.68x = 1,267,775,671,581.56 - Step 5: Solve for x
x = 1,267,775,671,581.56/1,286,853.68 - Step 6: Final answer
x = 985,174.69
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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.