Finding the Fourth Proportional to 725,556.74, 1,088,359.68 and 193,078.28
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Solution
The fourth proportional to 725,556.74, 1,088,359.68 and 193,078.28 is: 289,623.95
Step by Step Solution
- Step 1: Write the proportion equation
725,556.74 : 1,088,359.68 = 193,078.28 : x - Step 2: Convert to fraction form
725,556.74/1,088,359.68 = 193,078.28/x - Step 3: Cross multiply
725,556.74x = 1,088,359.68 × 193,078.28 - Step 4: Simplify right side
725,556.74x = 210,138,609,593.95 - Step 5: Solve for x
x = 210,138,609,593.95/725,556.74 - Step 6: Final answer
x = 289,623.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.