Finding the Fourth Proportional to 638,958.96, 881,758.44 and 352,491.12
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Solution
The fourth proportional to 638,958.96, 881,758.44 and 352,491.12 is: 486,435.03
Step by Step Solution
- Step 1: Write the proportion equation
638,958.96 : 881,758.44 = 352,491.12 : x - Step 2: Convert to fraction form
638,958.96/881,758.44 = 352,491.12/x - Step 3: Cross multiply
638,958.96x = 881,758.44 × 352,491.12 - Step 4: Simplify right side
638,958.96x = 310,812,020,085.05 - Step 5: Solve for x
x = 310,812,020,085.05/638,958.96 - Step 6: Final answer
x = 486,435.03
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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.