Finding the Fourth Proportional to 1,321,189.23, 1,823,154.79 and 777,219.91
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Solution
The fourth proportional to 1,321,189.23, 1,823,154.79 and 777,219.91 is: 1,072,512.68
Step by Step Solution
- Step 1: Write the proportion equation
1,321,189.23 : 1,823,154.79 = 777,219.91 : x - Step 2: Convert to fraction form
1,321,189.23/1,823,154.79 = 777,219.91/x - Step 3: Cross multiply
1,321,189.23x = 1,823,154.79 × 777,219.91 - Step 4: Simplify right side
1,321,189.23x = 1,416,992,201,799.87 - Step 5: Solve for x
x = 1,416,992,201,799.87/1,321,189.23 - Step 6: Final answer
x = 1,072,512.68
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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.