Finding the Fourth Proportional to 418,896.21, 628,365.07 and 119,420.91
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Solution
The fourth proportional to 418,896.21, 628,365.07 and 119,420.91 is: 179,137.28
Step by Step Solution
- Step 1: Write the proportion equation
418,896.21 : 628,365.07 = 119,420.91 : x - Step 2: Convert to fraction form
418,896.21/628,365.07 = 119,420.91/x - Step 3: Cross multiply
418,896.21x = 628,365.07 × 119,420.91 - Step 4: Simplify right side
418,896.21x = 75,039,926,517.74 - Step 5: Solve for x
x = 75,039,926,517.74/418,896.21 - Step 6: Final answer
x = 179,137.28
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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.