Finding the Fourth Proportional to 818,729.62, 1,129,854.59 and 451,220.00
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Solution
The fourth proportional to 818,729.62, 1,129,854.59 and 451,220.00 is: 622,687.86
Step by Step Solution
- Step 1: Write the proportion equation
818,729.62 : 1,129,854.59 = 451,220.00 : x - Step 2: Convert to fraction form
818,729.62/1,129,854.59 = 451,220.00/x - Step 3: Cross multiply
818,729.62x = 1,129,854.59 × 451,220.00 - Step 4: Simplify right side
818,729.62x = 509,812,992,688.71 - Step 5: Solve for x
x = 509,812,992,688.71/818,729.62 - Step 6: Final answer
x = 622,687.86
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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.