Finding the Fourth Proportional to 554,629.42, 829,755.18 and 420,081.08
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Solution
The fourth proportional to 554,629.42, 829,755.18 and 420,081.08 is: 628,463.69
Step by Step Solution
- Step 1: Write the proportion equation
554,629.42 : 829,755.18 = 420,081.08 : x - Step 2: Convert to fraction form
554,629.42/829,755.18 = 420,081.08/x - Step 3: Cross multiply
554,629.42x = 829,755.18 × 420,081.08 - Step 4: Simplify right side
554,629.42x = 348,564,449,051.42 - Step 5: Solve for x
x = 348,564,449,051.42/554,629.42 - Step 6: Final answer
x = 628,463.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.