Finding the Fourth Proportional to 419,146.44, 628,719.84 and 138,663.68
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Solution
The fourth proportional to 419,146.44, 628,719.84 and 138,663.68 is: 207,995.58
Step by Step Solution
- Step 1: Write the proportion equation
419,146.44 : 628,719.84 = 138,663.68 : x - Step 2: Convert to fraction form
419,146.44/628,719.84 = 138,663.68/x - Step 3: Cross multiply
419,146.44x = 628,719.84 × 138,663.68 - Step 4: Simplify right side
419,146.44x = 87,180,606,703.41 - Step 5: Solve for x
x = 87,180,606,703.41/419,146.44 - Step 6: Final answer
x = 207,995.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.