Finding the Fourth Proportional to 1,286,636.79, 1,775,771.72 and 713,861.49
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Solution
The fourth proportional to 1,286,636.79, 1,775,771.72 and 713,861.49 is: 985,247.00
Step by Step Solution
- Step 1: Write the proportion equation
1,286,636.79 : 1,775,771.72 = 713,861.49 : x - Step 2: Convert to fraction form
1,286,636.79/1,775,771.72 = 713,861.49/x - Step 3: Cross multiply
1,286,636.79x = 1,775,771.72 × 713,861.49 - Step 4: Simplify right side
1,286,636.79x = 1,267,655,033,490.90 - Step 5: Solve for x
x = 1,267,655,033,490.90/1,286,636.79 - Step 6: Final answer
x = 985,247.00
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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.