Finding the Fourth Proportional to 638,991.46, 881,803.29 and 352,523.62
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Solution
The fourth proportional to 638,991.46, 881,803.29 and 352,523.62 is: 486,479.88
Step by Step Solution
- Step 1: Write the proportion equation
638,991.46 : 881,803.29 = 352,523.62 : x - Step 2: Convert to fraction form
638,991.46/881,803.29 = 352,523.62/x - Step 3: Cross multiply
638,991.46x = 881,803.29 × 352,523.62 - Step 4: Simplify right side
638,991.46x = 310,856,487,918.71 - Step 5: Solve for x
x = 310,856,487,918.71/638,991.46 - Step 6: Final answer
x = 486,479.88
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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.