Finding the Fourth Proportional to 1,286,318.05, 1,775,228.03 and 713,542.75
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Solution
The fourth proportional to 1,286,318.05, 1,775,228.03 and 713,542.75 is: 984,749.52
Step by Step Solution
- Step 1: Write the proportion equation
1,286,318.05 : 1,775,228.03 = 713,542.75 : x - Step 2: Convert to fraction form
1,286,318.05/1,775,228.03 = 713,542.75/x - Step 3: Cross multiply
1,286,318.05x = 1,775,228.03 × 713,542.75 - Step 4: Simplify right side
1,286,318.05x = 1,266,701,086,835.57 - Step 5: Solve for x
x = 1,266,701,086,835.57/1,286,318.05 - Step 6: Final answer
x = 984,749.52
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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.