Finding the Fourth Proportional to 625,409.21, 863,065.44 and 338,929.29
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Solution
The fourth proportional to 625,409.21, 863,065.44 and 338,929.29 is: 467,722.82
Step by Step Solution
- Step 1: Write the proportion equation
625,409.21 : 863,065.44 = 338,929.29 : x - Step 2: Convert to fraction form
625,409.21/863,065.44 = 338,929.29/x - Step 3: Cross multiply
625,409.21x = 863,065.44 × 338,929.29 - Step 4: Simplify right side
625,409.21x = 292,518,156,802.74 - Step 5: Solve for x
x = 292,518,156,802.74/625,409.21 - Step 6: Final answer
x = 467,722.82
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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.