Finding the Fourth Proportional to 625,409.34, 863,065.62 and 338,929.41
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Solution
The fourth proportional to 625,409.34, 863,065.62 and 338,929.41 is: 467,722.99
Step by Step Solution
- Step 1: Write the proportion equation
625,409.34 : 863,065.62 = 338,929.41 : x - Step 2: Convert to fraction form
625,409.34/863,065.62 = 338,929.41/x - Step 3: Cross multiply
625,409.34x = 863,065.62 × 338,929.41 - Step 4: Simplify right side
625,409.34x = 292,518,324,614.38 - Step 5: Solve for x
x = 292,518,324,614.38/625,409.34 - Step 6: Final answer
x = 467,722.99
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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.