Finding the Fourth Proportional to 423,218.41, 634,761.99 and 123,618.53
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Solution
The fourth proportional to 423,218.41, 634,761.99 and 123,618.53 is: 185,408.63
Step by Step Solution
- Step 1: Write the proportion equation
423,218.41 : 634,761.99 = 123,618.53 : x - Step 2: Convert to fraction form
423,218.41/634,761.99 = 123,618.53/x - Step 3: Cross multiply
423,218.41x = 634,761.99 × 123,618.53 - Step 4: Simplify right side
423,218.41x = 78,468,344,103.67 - Step 5: Solve for x
x = 78,468,344,103.67/423,218.41 - Step 6: Final answer
x = 185,408.63
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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.