Finding the Fourth Proportional to 1,286,618.76, 1,775,542.50 and 713,668.68
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Solution
The fourth proportional to 1,286,618.76, 1,775,542.50 and 713,668.68 is: 984,867.55
Step by Step Solution
- Step 1: Write the proportion equation
1,286,618.76 : 1,775,542.50 = 713,668.68 : x - Step 2: Convert to fraction form
1,286,618.76/1,775,542.50 = 713,668.68/x - Step 3: Cross multiply
1,286,618.76x = 1,775,542.50 × 713,668.68 - Step 4: Simplify right side
1,286,618.76x = 1,267,149,072,258.90 - Step 5: Solve for x
x = 1,267,149,072,258.90/1,286,618.76 - Step 6: Final answer
x = 984,867.55
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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.