Finding the Fourth Proportional to 1,286,609.76, 1,775,530.08 and 713,659.68
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Solution
The fourth proportional to 1,286,609.76, 1,775,530.08 and 713,659.68 is: 984,855.13
Step by Step Solution
- Step 1: Write the proportion equation
1,286,609.76 : 1,775,530.08 = 713,659.68 : x - Step 2: Convert to fraction form
1,286,609.76/1,775,530.08 = 713,659.68/x - Step 3: Cross multiply
1,286,609.76x = 1,775,530.08 × 713,659.68 - Step 4: Simplify right side
1,286,609.76x = 1,267,124,228,723.17 - Step 5: Solve for x
x = 1,267,124,228,723.17/1,286,609.76 - Step 6: Final answer
x = 984,855.13
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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.