Finding the Fourth Proportional to 405,724.48, 559,899.70 and 221,964.53
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Solution
The fourth proportional to 405,724.48, 559,899.70 and 221,964.53 is: 306,311.00
Step by Step Solution
- Step 1: Write the proportion equation
405,724.48 : 559,899.70 = 221,964.53 : x - Step 2: Convert to fraction form
405,724.48/559,899.70 = 221,964.53/x - Step 3: Cross multiply
405,724.48x = 559,899.70 × 221,964.53 - Step 4: Simplify right side
405,724.48x = 124,277,870,403.23 - Step 5: Solve for x
x = 124,277,870,403.23/405,724.48 - Step 6: Final answer
x = 306,311.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.