Finding the Fourth Proportional to 491,605.23, 678,427.80 and 276,752.84
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Solution
The fourth proportional to 491,605.23, 678,427.80 and 276,752.84 is: 381,926.00
Step by Step Solution
- Step 1: Write the proportion equation
491,605.23 : 678,427.80 = 276,752.84 : x - Step 2: Convert to fraction form
491,605.23/678,427.80 = 276,752.84/x - Step 3: Cross multiply
491,605.23x = 678,427.80 × 276,752.84 - Step 4: Simplify right side
491,605.23x = 187,756,816,992.81 - Step 5: Solve for x
x = 187,756,816,992.81/491,605.23 - Step 6: Final answer
x = 381,926.00
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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.