Finding the Fourth Proportional to 420,791.58, 631,269.68 and 154,554.09
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Solution
The fourth proportional to 420,791.58, 631,269.68 and 154,554.09 is: 231,861.37
Step by Step Solution
- Step 1: Write the proportion equation
420,791.58 : 631,269.68 = 154,554.09 : x - Step 2: Convert to fraction form
420,791.58/631,269.68 = 154,554.09/x - Step 3: Cross multiply
420,791.58x = 631,269.68 × 154,554.09 - Step 4: Simplify right side
420,791.58x = 97,565,310,164.22 - Step 5: Solve for x
x = 97,565,310,164.22/420,791.58 - Step 6: Final answer
x = 231,861.37
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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.